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Archive by date: December 2007

December 31, 2007

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Scientists in the Honours List  - December 31, 2007

Ian Wilmut, the scientist famous for creating Dolly the cloned sheep, has been knighted in the annual British Honours List. He has apparently professed himself to be “surprised and delighted”.

Wilmut, who recently announced he would be abandoning cloning work in favour of research into induced pluripotent stem cells, was knighted alongside a number of other scientists (full list pdf).

Others nominated for ‘services to science’ include Martyn Poliakoff, professor of chemistry at the University of Nottingham. As the BBC notes, his research includes looking at how chemistry can deliver environmental benefits.

Brian Spratt, professor of molecular microbiology at Imperial College, is also honoured. He produced an independent review of UK biosecurity after the Foot and Mouth virus escaped from a supposedly secure laboratory (report pdf).

And in a year of climate change news, it seems appropriate that Godfrey Jenkins, head of the Climate Change Programme at the Met Office's Hadley Centre, is on the list.

The Guardian notes:

But there was no knighthood for Prof Colin Blakemore, who stepped down as chief executive of the Medical Research Council this year. Despite being nominated several times, his outspoken support for the need for animal experimentation appears to have made him too controversial for Whitehall to the anger of many scientists.

Another, probably overdue, honour goes to Steve Furber, one of the designers of the classic BBC Micro computer (news coverage, appropriately enough, from the BBC). Although almost unknown outside the UK, the BBC Micro was perhaps the first widespread home computer used in the country.

December 28, 2007

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Floods and mudslides in Java - December 28, 2007

Seasonal flooding has hit Indonesia hard again, for the fifth year running. More than 120 are feared dead and thousands have been left homeless after floods and landslides hit near the Bengawan Solo river, about 500 km from Jakarta, Java. The BBC has a slideshow of the destruction.

Such events are not uncommon in Java. "The main trigger is ecological destruction caused by deforestation, forest conversions and chaotic spatial planning," Chalid Muhammad, director of Indonesia's leading environmental group Walhi, told Reuters.

Whether it’s worth pouring money into reforestation to mitigate the damage of flooding has proven controversial in the past, but recent work has pinned down evidence that native forests do reduce the frequency and severity of floods in developing nations (Nature; subscription needed).

One extremist islamic cleric has blamed the disaster on the sins of the people, according to AFP and other sources.

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Zoo news: escaped tiger - December 28, 2007

Officials and specialists are still puzzling over how a Siberian tiger managed to escape from its enclosure in the San Francisco Zoo, killing a visitor on Christams Day. A story in the Boston Globe reveals that the vertical wall of the enclosure was only 3.8 meters high, while one expert states that a full-grown tiger can reach that height with its front paws simply by standing on its back feet. The guideline wall height recommended by the Association of Zoos & Aquariums is apparently 4.8 metres.

The San Francisco Chronicle is collecting reader comments on this tragedy.

This is by no means the first time that big cats have escaped by leaping their enclosure walls. In November we reported how cheetahs at the St Louis Zoo in Missouri had managed to scale a 3-metre wall three times in the same exhibit since 2000.

CNN has a somewhat grisly list of further zoo escapes and accidents.

December 27, 2007

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Martians watch out - December 27, 2007

An asteroid being tracked by NASA has a 1 in 75 chance of whacking into Mars in January 2008, according to work from the Near Earth Object Program at the Jet Propulsion Laboratory.

The asteroid, called 2007 WD5, is similar in size to the one thought to have whacked into Tunguska, Siberia in 1908, says AP. NASA expects it could reasonably make a crater about a kilometre wide.

Scientists have previously watched bits of a comet whack into Jupiter, and asteroids hit the Moon, but this would be the first observed Martian asteroid impact (even the Beagle mission, which accidentally ‘impacted’ Mars, happened unobserved).

Though they can’t say for certain whether it will hit the planet, they do seem able to predict where it would hit, should it hit at all: fortunately that ‘impact zone’ wouldn’t see the asteroid wipe out any Martian rovers, like Opportunity.

Should an impact happen, scientists round the world will be keen to watch the dust kicked up by the collision. There’s some nice local colour in Express India on this.

December 21, 2007

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Doctors: med students, but older... - December 21, 2007

Every year the British Medical Journal adds to the jollity of nations with a holiday issue packed with silly research. Rather than trying to decide which paper to cover this year, I’m highlighting lots of them for you...

‘Champagne: the safer choice for celebrations’ - Robert J Douglas

After removing a beer bottle cap from inside a 24 year old Australian rules football player, who had ingested it after drinking from the cup his team had just won, Dr Douglas conducted a ‘comprehensive Medline search’ for similar examples involving champagne corks. He failed to find any examples of similar problems. His conclusion: “Since the 18th century, champagne has been the beverage of choice for celebrations and on current evidence should remain so.”

Accuracy of comparing bone quality to chocolate bars for patient information purposes: observational study - Phil Jones et al

Doctors sometimes explain bone structures to patients by comparing bones to either a ‘Crunchie’ chocolate bar or to an ‘Aero’ bar. However after dropping the bars from various heights to simulate fractures and running bone density tests the researchers concluded: “Using Crunchie and Aero chocolate bars to explain bone structure to patients may be visually attractive but oversimplifies the situation.”

Those wanting more chocolate related medicine can read about why the change of another product’s shape is causing problems for those attempting to assess testicular volume: Dissent of the Testis

Sex, aggression, and humour: responses to unicycling - Sam Shuster

What do responses to a unicycling doctor tell us about humanity?

Continue reading "Doctors: med students, but older..." »

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Japan abandons humpback hunt - December 21, 2007

humpbackNOAA.jpgJapan’s massively controversial decision to take humpbacks in this year’s whale hunt has been abandoned. Although the hunt will continue, the planned take of 50 of the vulnerable animals has been dropped.

“Japan has decided not to catch humpback whales for one year or two,” said government spokesman Nobutaka Machimura (Reuters).

Some have said this u-turn is a result of pressure from the Australian government. Machimura himself said, “Japan’s relations with Australia could improve, but it depends on how it will see our decision.”

However the Japanese line appears to be that although it hopes the move will improve relations with Australia it was not forced by their pressure. On the BBC this morning a spokesperson for Japan’s Institute of Cetacean Research was asked if the move was due to the antipodeans. “That is not correct. It was in direct response to a request from the chairman of the IWC [International Whaling Commission],” said Dan Goodman (audio file).

Continue reading "Japan abandons humpback hunt" »

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‘Save the penguins’, with a twist - December 21, 2007

Rummaging through junk in the basement of Cambridge’s Scott Polar Research Institute, Huw Lewis-Jones has brought to light two penguins of a type never seen before. Drawn by legendary explorers Captain Scott and Ernest Shackleton these chalk sketches were probably made to illustrate public lectures.

“We have absolutely no idea how we got them and we are still trying to find a record of them arriving in our collections, but I am sure they are authentic. Some people may think they look a little crude but I think they are incredibly charming,” says Lewis-Jones, historian and curator of art at the Scott Polar Research Institute (press release).

“People often compare Scott and Shackleton in terms of their achievements as explorers and their leadership qualities. Now, albeit with a smile on our faces, we can judge their artistic abilities as well.”

The Great Beyond says: Scott wins hands down.

The university is now appealing for donations so it can ‘save’ – ie restore – the drawings. Example newspaper coverage: Daily Telegraph.

penguin2.JPG penguin1.JPG

December 20, 2007

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Stem cells go to the movies - December 20, 2007

Posted on behalf of Brendan Maher, locum Nature biology features editor

Last night I went to the Philadelphia public television station WHYY, to see an independent film on stem cell researcher Jack Kessler of Northwestern University and the sharp turn his research took when his daughter lost the use of her legs after a skiing accident. The movie is called “Mapping stem cell research: Terra Incognita”.

Shot in stark video, the piece paints an intimate portrait of Kessler, his family and his “other” family -- the postdoc and student working on a spinal regeneration project under his direction. The movie is positioned to put a human face on the ethics of embryonic stem cell research. Kessler is an outspoken activist for this kind of work – moreso even than his college-aged daughter, who just wants to get on with her life.

I was more compelled by the personal look at his postdoc and student, as they test the effects of injecting a self-assembling gel matrix into severed mouse spinal cords and see if axonal growth is able to cross a crucial barrier. It’s a live animal follow-up to the experiments presented in this Science paper.

In the movie you see tense lab meetings with negative results, time-consuming troubleshooting, and that odd mistrust that junior researchers feel about their results that is overshadowed by the enthusiasm of a PI. Ultimately, their paper is rejected from Science without review. Not your happiest of endings, but certainly appropriate.

The screening was followed by panel discussion including science journalist Marie McCullogh from the Philadelphia Inquirer; Jonathan Epstein, a University of Pennsylvania stem-cell biologist; and two bioethicists, Paul Root Wolpe from Penn and Catholic priest and biologist, Father Tadeusz Pacholczyk, who appears in the movie comparing embryonic stem-cell research to slavery. Needless to say, it was a heated discussion about the nature of the embryo and the equivocation between potentiality and identity. The roundtable more or less proved that the recent discovery of reprogrammed, or induced pluripotent stem cells, in no way changes the nature of the debate.

The question was raised, but never adequately answered by the main stem-cell opponent in the room (that would be Fr. Tad) whether it would be acceptable to use treatments, if ever developed from these induced cells, based on the fact that they were made possible by research he finds otherwise abhorrent.

The film starts running on US public television stations on 15 January. A listing of screenings around the country is available here.

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MIT unveils bicycle powered supercomputer - December 20, 2007

A new world record in human powered computing has been set by MIT students who used bicycles to power one of the institute’s supercomputers for 20 minutes. As part of the ‘Innovate or Die’ pedal-powered machine contest a nuclear fusion reaction was modelled by the sweat of the students’ brows.

More arithmetic calculations were computed “than were done on the entire earth up to 1960”, according to Techworld. A very energy efficient supercomputer was used though – a chip in the SiCortex machine apparently uses about 8 watts of power, compared to an average laptop chip that could draw 100 watts (Xconomy). Of course there is more than one chip in the supercomputer – Techworld says the “low-powered” system drew 1,200 watts.

“By harnessing the energy creation processes of the sun, our research opens the possibility of limitless energy. But we still need to do our parts individually, such as by using energy-efficient computers in our research,” says John Wright, a member of MIT’s Plasma Science & Fusion Center (Gizmag and Cycling News).

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Creationism masters nears approval - December 20, 2007

A Texas creationist institute has taken another step towards being able to award masters degrees in science education. An advisory council has recommended that Texas approve the degree which the Institute for Creation Research wants to offer (AP, NY Times).

“The Institute for Creation Research equips believers with evidences of the Bible’s accuracy and authority through scientific research, educational programs, and media presentations, all conducted within a thoroughly biblical framework,” the ICR’s website declares.

“They teach distorted science. Any student coming out from the ICR with a degree in science would not be competent to teach in Texas public schools,” says Eugenie Scott, executive director of the National Center for Science Education (AP again).

Continue reading "Creationism masters nears approval" »

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Stop working so hard! - December 20, 2007

Christmastrees.bmpWorrying new research surfaces in this week’s issue of Nature. According to the authors “increasing numbers of scientists are swapping party hats for mouse mats during the festive season”.

Between 1996 and 2006 there was a 600% increase in articles submitted to academic journals on Christmas Day, according to Richard Ladle and colleagues. Ladle and co suggest four possible reasons for the increase: the growth of a ‘publish or perish’ culture; research being pushed into the holiday by teaching and admin pressure; implementation of electronic submission; and changing religious beliefs among scientists.

“Although Christmas Day seems to be an ideal opportunity to get on with some blissfully uninterrupted research, we would urge our fellow scientists to keep their laptops turned off and enjoy a bit of Christmas spirit. You never know, Santa might then be more inclined to bring you that most popular of presents — a paper published in Nature!” they write.

Other people are also worried by the finding. The Ottawa Citizen urges researchers to “stop and smell the poinsettias” (though try not to inhale the whitefly). Meanwhile the Houston Chronicle’s SciGuy blog notes, “Whatever accounts for this trend, it seems a shame that scientists can't enjoy a day of rest and relaxation when most of the rest of are certainly doing so.”

Another worrying point occurs – if you lot keep submitting papers up to Christmas Day sooner or later our editor is going to want us to be here to sort through them on Christmas Day. Please stop, for my colleagues’ sake!

[Some of the links on this post pointed in the wrong directions when it was first online. Apologies for that – Ed.]

December 19, 2007

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‘We’ll save cod by catching more,’ says Europe - December 19, 2007

fishingboatpunchstock.JPGHow do you protect a species that most experts agree is on the brink of extinction? Catch more of them for food!

It was announced this morning that the EU has increased the quota for European cod fishing by 11%. The basis for this decision is a study published earlier this year suggesting that cod populations are recovering slightly.

As we noted then:

The International Council for the Exploration of the Seas is still saying quotas for cod need to be slashed. What is driving these ‘slight recovery’ stories is the number of young cod in the North Sea has shown a slight rise for a second year.

Nevertheless the EU in its wisdom (this is the same body that once considered carrots fruit*) has decided that cod can sustain an 11% increase in the Total Allowable Catch (press release).

Continue reading "‘We’ll save cod by catching more,’ says Europe" »

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Bio-boat aims at world record - December 19, 2007

bioboat.jpgA speed boat running on bio-diesel with a net zero carbon-footprint is attempting to beat the round the world record. The current record is 74 days, 23 hours and 53 minutes, Earthrace plans to do it in 65 days.

Yesterday it was announced that the boat will set off from Valencia in March (press release).

“I wanted to do a positive project run on biodiesel and take it round the world. Politicians in Western Europe must be prepared to stand up to the oil industry and be more supportive of the biofuels industry to make sure the production of biofuels is sustainable,” says captain Pete Bethune (AFP).

AFP also has the frankly bizarre claim that Bethune is so committed is to the project that he has undergone liposuction; his fat will be turned into some of the bio-diesel.

Earthrace has already ungone some traumas and it now sports bullet holes from a run in with some suspected pirates (Guardian). During its last attempt a Guatemalan fisherman was killed after a collision with the boat, which moves at an average speed of 40 knots (75 km per hour).

Image: courtesy Jim Burkett

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Am I seeing double, or have they sequenced the wine genome again? - December 19, 2007

wineglassesGETTY.bmpAt last we may start see some real world benefits of all this genome sequencing we’re doing: better wine at better prices. An international team is announcing the second genome sequence of the pinot noir grape.

“This description of the grape genome presents an opportunity to direct genetic improvement or disease resistance,” says Brian Dilkes, academic editor of the paper in PLOS One (press release). “The genome sequence simultaneously identified hundreds of genes, which correspond to enzymes that produce flavor and aroma compounds. This will allow breeding for diseases resistance to proceed without disturbing the biochemistry of taste and grape quality. When I told sommelier Andrew Meadows about this recently, his reaction was, ‘Good! I would love to offer a decent Pinot for less than $30’.”

The Pinot Noir grape has already been sequenced and published – in Nature earlier this year (paper, news coverage). But as Reuters notes, the new team have catalogued the single nucleotide polymorphisms – where a single nucleotide differs between species.

These SNPs could now act as a library of variation, allowing researchers to unpick which genes influence which characteristics. “It is a treasure trove,” says Dilkes.

I guess genome sequences are like wine bottles at Christmas time – you can never have too many. Raise a glass to both research teams.

Image: Getty

December 18, 2007

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SoS: Save our Shuttle - December 18, 2007

shuttleNASAnext.jpgThe US politician who counts the Kennedy Space Center’s workers among his constituents is demanding that NASA keeps the Shuttle flying beyond its current planned retirement date.

Republican Dave Weldon, who represents one of Florida’s districts in the House of Representatives, wants the Shuttle to keep going until 2015 rather than 2010. This will cost about $10 billion and will avoid the United States having to depend on Russia to get people to the International Space Station.

“The 2010 date was really an arbitrary date that was really picked more by OMB [US Office of Management and Budget] than NASA,” says his spokesman Jeremy Steffens (Reuters). “The risk does not increase overnight. Obviously there’s risk and NASA is doing its best to mitigate it. The risk is worth the goals we set out.”

Weldon will introduce an act containing the demand that NASA keeps flying soon, says the Orlando Sentinel, although he doesn’t think it is actually likely to pass. He hopes that it will force a debate however, the paper notes. “It is about our leadership in space and a very important policy issue: Are we going to put our space program into the hands of the Russians for such a long period of time?”

The act would also allow the launch of the Alpha Magnetic Spectrometer. This $1.5 billion dark matter experiment instrument has been constructed but will be mothballed unless more shuttle launches are forthcoming (Florida Today).

Image: NASA

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Don’t give up on human stem cells - December 18, 2007

stem cell Photodisc.JPGAmerican scientists are urging the country not to abandon human stem cells in the wake of the recent successes in cell reprogramming. Worried by proclamations from some that these successes ‘prove right’ the current US administration’s tough-line on stem cell and cloning work, the researchers have gone on the offensive.

Since the recent announcement of successful reprogramming, editorials carrying statements such as “[r]arely has a president - so vilified for a moral stance - been so thoroughly vindicated” have been springing up across the United States. Now the fightback seems to be gearing up.

Key to their argument is the fact that ‘reprogrammed’ cells – where instead of obtaining stem cells from an embryo ‘induced pluripotent stem cells’ are created from adult human skin – are not yet safe for clinical use.

“For doing basic research on human cells, IPS as a method has won - it's huge. But for the ultimate goal of getting cells into a patient, it's a lot less clear. These cells may never be useful for direct therapy,” says George Q. Daley, a stem cell researcher at Children’s Hospital Boston, in the Boston Globe.

Douglas A. Melton, codirector of the Harvard Stem Cell Institute, is even firmer, saying: “It will never be approved [by the FDA] to put these cells in a patient.”

See also
Follow up of the Globe piece in the Chronicle of Higher Education: Harvard Pledges to Continue Research Into Embryonic Stem Cells
Follow up in Wired: Cloning Still Holds Stem Cell Key, Say Leading Harvard Researchers
Previous post on the topic from Wired in November: Too Soon to Give Up on Embryonic Stem Cells

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‘Death star’ is killing ETs - December 18, 2007

chandramain.jpgA giant jet of energy from a supermassive black hole has been witnessed punching into a neighbouring galaxy, with potentially devastating consequences. Any ETs living in the jet’s path would be bombarded with huge amounts of radiation and particles travelling at the speed of light (press release, coverage from BBC, Reuters, Washington Post, National Geographic).

“We’ve seen many jets produced by black holes, but this is the first time we’ve seen one punch into another galaxy like we’re seeing here. This jet could be causing all sorts of problems for the smaller galaxy it is pummelling,” says Dan Evans, leader of the study, (NASA press release).

Evans and colleagues produced the spectacular image seen above using a veritable who’s who of modern telescopes,. Together, the two galaxies – the larger one in the lower left of the composite picture and a smaller one above it to the right – make up the 3C321 system.

Witness the power of our fully operational telescopes...

Continue reading "‘Death star’ is killing ETs" »

December 17, 2007

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‘An isopod is cute in the eyes of an isopod’ - December 17, 2007

giantisopod.jpgYou don’t get many people waxing lyrical about the giant isopod – a kind of deep-sea woodlouse larger than many dogs. As well as looking like they’ve stepped out of one of your darker nightmares, giant isopods also have the unappealing habit of feeding on the carcasses of dead things that sink down to the ocean floor.

But now the frankly horrible looking things are getting their own tribute CD. An as-yet-unspecified charity will benefit from the sale of the ‘Songs About Giant Isopod’ album. Giant isopods themselves probably don’t need much help – they’re believed to be widely distributed across ocean floors.

Giant isopod fans across the internet are having a field day (here and here) and you can listen to some of the tracks online, including the one this blog-post is named after, ‘An isopod is cute in the eyes of an isopod’:
“Just because we’re not as cute as kittens and things, doesn’t mean we deserve to go extinct* ... Though we may look gruesome, it’s just evolution.”

* as far as I can tell this is artistic licence, giant arthropods aren’t listed as endangered by the IUCN.

Image: underside of a giant isopod captured by Bob Carney of Louisiana State University (more, image link) / NOAA

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Anorexia ‘can’t be caught from photos’ - December 17, 2007

Pictures of stick-thin models may be off the hook for triggering eating disorders. A new study adds to evidence that anorexics’ brains are actually wired differently and they are born with a susceptibility to the condition.

Headlines on the reporting of this study, illustrated with photos of suitable models of course, have included
Anorexia not models’ fault - The Sun
Anorexia ‘cannot be picked up by looking at photographs of super-thin models’ – The Times

However there seems to be a slight problem with this conclusion, at least to my mind: the study did not involve pictures of models at all. Nor did it investigate what might trigger anorexia; it actually looked at the brains of recovered anorexics.

Continue reading "Anorexia ‘can’t be caught from photos’" »

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After a year in the ice, science ship breaks free - December 17, 2007

A ship deliberately frozen into the Arctic ice is nearly free. A little over a year after the Tara was encased in the ice north of Russia it is expected to be released somewhere between Greenland and Svalbard.

Ice around the ship has already cracked, forcing scientists manning the various instruments they had deployed on the ice around her back on board.

“Within the space of 15 minutes our ‘back garden’ transformed into a mass of fractured blocks with open water between. Heaving on a slight swell and jostling amongst the ice floes Tara found her level floating line,” says Grant Redvers, expedition leader, on the ship’s log for 13 December.

Continue reading "After a year in the ice, science ship breaks free" »

December 14, 2007

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Weekly round up - December 14, 2007

What’s been on The Great Beyond this week and a few extras...

Monday December 10
Stripping for science / Nuclear lab hacking linked to China / Shuttle and Euro lab grounded / James Watson ‘16% black’ claim

Tuesday December 11
Science tattoo collection reaches 100 / Penguins and global warming / Wheel of Spirit hints at life on Mars / Is evolution speeding up?

Wednesday December 12
‘Giant spider eats space shuttle’ / Dino of the day – Student-o-saurs / Magnetic ropes power 40,000kmh aurora storm

Thursday December 13
How hot was 2007? / Arctic ice – never say die / Saturn’s rings are older than we thought

Friday December 14
Someone’s got it in for the ISS / Flowering bamboo brings out the rats / Coral reefs are on the ropes

Other Nature blog posts you may have missed
In the Field – seismologists detect ‘footquakes from celebrating football fans
The Sceptical Chymist – chemistry and cooking
Spoonful of Medicine – being inclusive for the sake of political correctness

Ones that got away
Fin whale feeding time, from the NY Times
The strange case of an engineering professor’s Wikipedia ban, from the Guardian
Poachers have decimated the European eel population, from The Times

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Coral reefs are on the ropes - December 14, 2007

coralreef.jpgIf you like coral reefs you should enjoy them while you can, they won’t be around for long. Global warming and the ocean acidification that comes with it will decimate reefs by the end of this century, according to a new review article in Science.

“The impact of climate change on coral reefs is much closer than we appreciated. It's just around the corner,” says study author Ove Hoegh-Guldberg, of the University of Queensland. “... The warmer and more acidic oceans caused by the rise of carbon dioxide from the burning of fossil fuels threaten to destroy coral reef ecosystems, exposing people to flooding, coastal erosion and the loss of food and income from reef-based fisheries and tourism. And this is happening just when many nations are hoping that these industries would allow them to alleviate their impoverished state.” (Reuters ... Telegraph)

Although there is no new original research here, when all the numbers are brought together they are pretty frightening. Atmospheric carbon dioxide will exceed 500 parts per million sometime between 2050 and 2100. This will drive global temperatures up at least 2°C, “values that significantly exceed those of at least the past 420,000 years during which most extant marine organisms evolved” says the paper.

It adds ominously, “Under these conditions, reefs will become rapidly eroding rubble banks such as those seen in some inshore regions of the Great Barrier Reef, where dense populations of corals have vanished over the past 50 to 100 years.”

Continue reading "Coral reefs are on the ropes" »

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Flowering bamboo brings out the rats - December 14, 2007

Flowering bamboo in India is leading to a plague of rats that are overrunning villages, destroying crops and costing the government millions.

Bamboo flowers infrequently, and it can go decades without blooming. When it does flower though, the local bamboo rats go wild.

“Rodents are swarming all across Mizoram state, feasting on standing crops and leading to fears of a famine. The situation is indeed alarming,” James Lalsiamliana, an official in the state’s Rodent Control Program told AP.

The government has responded by increasing both the amount of rice given to villagers in the state and the wages they are paid (Times of India). It is also offering a bounty of two rupees ($) for each rat killed. Tails must be presented by anyone claiming their money and piles of the tails are now being burned after more than a million were handed over, says the BBC, which has a disturbing picture.

“The existing armies of rats are expected to survive till December and soon die as they will be left with nothing to eat,” according to Lalsiamliana.

There is an undated first person account of a plague of bamboo rats on Kangla Online.

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Someone’s got it in for the ISS - December 14, 2007

ISS.jpgIt must seem to the people responsible for the International Space Station that someone up there doesn’t like them. Ongoing problems with its power supply may be added to by a meteor strike, Reuters is reporting.

A spacewalk is planned to see if a micrometeor knocked out a “critical part of the outpost's power system” says Reuters. No other details are provided but any damage could be costly given one set of solar panels is already suffering problems with rotating to face the Sun and another tore when it was being unfurled.

Although this latest problem will probably not cause problems with the European lab that is due to be hoisted up to the ISS in January, it may cause problems with a planned Japanese module, station deputy program manager Kirk Shireman told Reuters.

Image: ISS seen from shuttle Discovery after undocking / NASA

December 13, 2007

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Saturn’s rings are older than we thought - December 13, 2007

saturn.jpgFar from being youthful tykes, appearing only around the time of the dinosaurs, Saturn’s rings actually date back to the start of our solar system some 4.5 billion years ago, according to data from the Cassini probe (press release, coverage on AP). However, thanks to a nifty anti-aging trick, they look younger than might be expected.

Previously it was thought that the distinctive rings were formed when a moon had a head-on disagreement with a comet. But Cassini found the ages of different rings varied considerably, suggesting one massive collision didn’t cause the rings. Researchers also found 13 objects in the F ring of Saturn, ranging from 27 metres to 10 kilometres in size. Most of these objects were identified by the team as ‘moonlets’ of icy boulders aggregating then separating.

“The evidence is consistent with the picture that Saturn has had rings all through its history. We see extensive, rapid recycling of ring material, in which moons are continually shattered into ring particles, which then gather together and re-form moons,” says Larry Esposito, principal investigator for Cassini's Ultraviolet Imaging Spectrograph (press release).

What Esposito has shown is not that the rings are as old as the solar system but they could have survived since the start of the solar system. If Saturn’s rings were as old as Saturn, previous theories ran, they should have been darker due to infall of meteoric dust.

Continue reading "Saturn’s rings are older than we thought" »

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Arctic ice – never say die - December 13, 2007

arcticice.jpgArctic ice is the story that won’t die – unlike the ice, which apparently will, and soon. Since the start of October, and what I hoped would be the last word on the topic, there have multiple stories demanding coverage*. Now there is more news; the Arctic is screaming...

Reports at the AGU meeting are painting a dire picture of the region’s future, with Greenland glaciers melting faster than ever before and summer sea ice predicted to be totally gone by 2013. There is also a report of some amazing thinning of ice – Alex Witze is at the conference for Nature and has the full details. Here’s an extract:

Don Perovich, of a US army cold regions and research laboratory in New Hampshire, reported on a single but extraordinary ice buoy in the Beaufort Sea. In June the buoy measured sea ice at that location as 3.3 metres thick – “really a healthy piece of ice,” as he put it. But by the end of the summer, 70 centimetres had melted off the top – and 2.2 metres (yes, metres) off the bottom.

Prophets of Doom
“The Arctic is screaming,” says Mark Serreze, senior scientist at the US snow and ice data center, noting that Greenland’s ice sheet melted 19 billion tons more than previous records (AP).

“The amount of ice lost by Greenland over the last year is the equivalent of two times all the ice in the Alps, or a layer of water more than 800 meters deep covering Washington DC,” according to Konrad Steffen, of University of Colorado at Boulder (Reuters).

“Our projection of 2013 for the removal of ice in summer is not accounting for the last two minima, in 2005 and 2007. So given that fact, you can argue that maybe our projection of 2013 is already too conservative,” Wieslaw Maslowski, of the Naval Postgraduate School, Monterey, explains why previous dire estimates are still too positive (BBC).

“The Earth's ice cover is sounding an alarm - a climate alarm - and it is up to us as a society to figure out how we want to respond to that alarm,” says Waleed Abdalati head of the Cryospheric Sciences Branch at NASA's Goddard Space Flight Center.

UPDATE
James Overland was one of the other researchers presenting results to the AGU. David Archer, from Real Climate, was there and witnessed his audience participation spot, where he invited attendees to comment on the implication of the recent melt:

The options were
• A The meltback is permanent
• B Ice coverage will partially recover but continue to decrease
• C The ice would recover to 1980’s levels but then continue to decline over the coming century
Options A and B had significant audience support, while only one brave soul voted for the most conservative option C. No one remarked that the “skeptic” possibility, that Arctic sea ice is not melting back at all, was not even offered or asked for. Climate scientists have moved beyond that.

*
The only way to fly - October 09
Ice surveyors will walk to pole - October 17
Sea change brings coast guard to Arctic - October 19

Image: Arctic Ocean, north of western Russia by Mike Dunn / NOAA Climate Program Office, NABOS 2006 Expedition

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How hot was 2007? - December 13, 2007

The numbers are in: 2007 (from January till November) has been the 7th warmest year on record, according to the UK’s meterological office. The US National Oceanic and Atmospheric Administration puts it at 5th.

It’s easy to drown in these kinds of statistics, so let’s cut to the chase: the ten warmest years since 1850 have all happened since 1995. If it seems odd to release results for the year’s temperature in November (before the year ends), note that it comes in time to be presented at the UN Climate Change meeting in Bali.

There’s a nice crunching of the UK numbers in The Times, while Reuters rounds up some extreme weather disasters.

Those aware that there was some hyped controversy about records like this a few months ago might like to check out this Real Climate post.

The full report on the climate of 2007 should soon be available on the WMO website.

December 12, 2007

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Magnetic ropes power 40,000kmh aurora storm  - December 12, 2007

northernlightsPederson.jpgFirst there's an ancient polar bear at Svalbard, now they're looking at the power of the Northern Lights. Did someone theme this year's AGU meeting to coincide with the Philip Pullman film launch?

An eruption of activity in the Northern Lights has been captured in unparalleled detail by NASA instruments, revealing ‘magnetic ropes’ feeding the event. The findings take us some way towards an answer to what kicks off these eruptions.

It has been known for some time that the solar wind powers the Northern Lights. Charged particles from the Sun catch in the Earth’s magnetic field, being funnelled towards the poles where they give up their energy in so-called substorms, which produce the spectacular light displays. In an attempt to work out exactly why and how these substorms are triggered, NASA launched the Time History of Events and Macroscale Interactions during Substorms mission.

In March this year satellites and ground-based instruments from THEMIS observed an eruption in the Northern Lights over Canada. This substorm was witnessed moving at over 39,000 kilometres per hour and it is estimated that its total power consumption during its two-hour life was a colossal five hundred thousand billion Joules (press release, coverage in AFP, Wired, National Geographic, Space.com).

A pathway for this power has also been uncovered - twisted bundles of magnetic fields dubbed ‘magnetic ropes’. “The satellites have found evidence of magnetic ropes connecting Earth's upper atmosphere directly to the sun. We believe that solar wind particles flow in along these ropes, providing energy for geomagnetic storms and auroras,” says David Sibeck, project scientist for the mission at NASA’s Goddard Space Flight Center.

THEMIS also spotted explosions where the solar wind first feels our planet’s magnetic field, an area known as the bow shock. “Sometimes a burst of electrical current within the solar wind will hit the bow shock and—Bang! We get an explosion,” says Sibeck.

Video: a THEMIS simulation of the March 23rd substorm / J.Raeder & T.Bridgman

Main image: photo of the March 23 aurora taken by Daryl Pederson. Copyright Daryl Pederson.

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Dino of the day – Student-o-saurs - December 12, 2007

A new species of giant carnivorous dinosaur has finally been unveiled, after a fossil found in 1997 was identified by a student as being a distinct, new species. The fossil of Carcharodontosaurus iguidensis, a 14 metres beast with teeth “the size of bananas”, was found in Niger but it was Steve Brusatte, a masters student at the University of Bristol in the UK, who identified the theropod.

dinobus.jpg

Unearthed by fossil hunting paleo-academic Paul Sereno, the bones languished in a Chicago lab before being passed on to Brusatte for a project (BBC, Daily Mail).

“It really is a fascinating animal - it was one of the largest meat eaters that lived on the planet. ... It was a 13m long predator that still had to watch its own back because something bigger was out there - an animal called Spinosaurus,” Brusatte told BBC News.

Kudos is also due to Brusatte for shoehorning a global warming line into his findings: “The Cretaceous world of 95 million years ago was a time of some of the highest sea levels and warmest climates in Earth history. ... This has implications for the world today in which temperatures and sea level are rising. It is precisely by studying these sorts of ecosystems that we can hope to understand how our modern world may change.” (Press release and The Times).

The findings are due to be published in the Journal of Vertebrate Paleontology.

Image: mockup of Carcharodontosaurus iguidensis, racing a London bus / Simon Powell

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‘Giant spider eats space shuttle’ - December 12, 2007

nasaspider.bmpA moment of levity during NASA’s frustrating attempts to launch Atlantis – a spider crawling on the lens of one of its cameras appears as a monstrous, shuttle eating beast.

“Add ‘exterminator’ to the list of preflight checks for January’s launch,” says WJBF.

British paper Metro has the real scoop though: “experts viewing the footage suggest that it is a clear indicator that the Earth is about to be plunged into an all-out space war with a race of 150ft-long demonic spiders who live on rocket fuel”.

Watch the full video and make up your own mind.

December 11, 2007

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Is evolution speeding up? - December 11, 2007

dnagreygetty.jpgEvolution has accelerated in the last 40,000 years as a result of natural selection, according to a paper published this week in PNAS. Some experts are already questioning the claims however.

Using the 3.9-million HapMap SNP dataset, John Hawks, of the University of Wisconsin, Madison, and colleagues focused on so-called linkage disequilibrium. This is where genetic variations occur more often than would be predicted by chance, and where it is therefore likely that changes bring a selection advantage. Recent change is then identified by long segments of LD that have not been remodeled by DNA reshuffling (press release).

This led Hawks and co to find evidence of recent selection on about 7% of all human genes. “We are more different genetically from people living 5,000 years ago than they were different from Neanderthals,” he says.

Not that this necessarily makes us better than our great-to-the-power-n grandparents.
“Some of the mutations let us do better. We can eat simple carbohydrates, which hunter-gatherers never did. But we may also be accumulating damaging stuff,” co-author Henry Harpending of the University of Utah, told Wired.

Not everyone is convinced. Jonathan Pritchard, of the University of Chicago, told the NY Times, “My feeling is that they haven’t been cautious enough.” This sentiment has been echoed by others. There’s some interestingly technical criticism at one post on the Gene Expression blog, although another post on the same blog is more convinced.

The research paper should appear later this week.

Image: Getty

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Wheel of Spirit hints at life on Mars - December 11, 2007

marssilica.jpgUPDATE: see what our reporter at the conference makes of The latest from Mars

Mars rover Spirit has run over something interesting - quite literally run over. A damaged wheel on the rover has churned up the Martian surface so much that researchers have been able to see underneath to what may be evidence of hot springs or acid steam on the red planet.

What Spirit unearthed appears to be nearly pure silica, a substance that NASA thinks could have appeared in one of two ways. Either hot springs dissolved silica out of volcanic rock and then precipitated it out of solution when the water cooled, or acidic steam from cracks called fumaroles stripped everything bar the silica out of the soil (NASA press release).

“Whichever of those conditions produced it, this concentration of silica is probably the most significant discovery by Spirit for revealing a habitable niche that existed on Mars in the past,” says Steve Squyres, principal investigator for the rovers’ science payload. “The evidence is pointing most strongly toward fumarolic conditions, like you might see in Hawaii and in Iceland. Compared with deposits formed at hot springs, we know less about how well fumarolic deposits can preserve microbial fossils.”

The research surfaced at the current American Geophysical Union meeting (which Nature reporters are blogging). Squyres told the meeting “We’re really excited about this.” (BBC). One reason for this excitement is that both hot springs and fumaroles support extremeophile bacteria. The finding, says Squyres, “as implications for habitability” (SF Chronicle).

Spirit now needs somewhere to settle down for the Martian winter and the lack of sunlight it will receive. Yet again there are concerns that dust storms may have blocked its solar panels, endangering its survival (AP). “Team members are pulling out all the stops to get Spirit to a winter location where, based on solar power projections, the rover has a chance at survival,” says NASA (press release 2).

Image: NASA

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Penguins and global warming - December 11, 2007

adeliepenguinNOAA.jpgIt seems obvious that penguins will be in trouble if global warming continues. If you like it cold and icy then a hotter planet is not going to work in your favour.

A new report from environmental group WWF highlights the problems the dinner-jacketed birds face. “As the ice melts, these icons of the Antarctic will have to face an extremely tough battle to survive,” says Emily Lewis-Brown, Marine and Climate Change Officer at WWF-UK (press release).

WWF says overfishing and a reduction in sea ice is putting the Emperor, Gentoo, Chinstrap, and Adélie penguins under pressure. The report is actually just a two page document timed to coincide with Bali and it has long been known that penguins have, in the words of 2001 paper published in Nature, “potential high susceptibility to climate change”.

No new science then, still it’s a good time and a good peg, and it is getting coverage, along with two men dressed as penguins in Bali who danced around to the song “Hot, Hot, Hot”.

Penguins now threatened by global warming
Penguin colonies in decline because of global warming
The last emperor? Penguin numbers plunge
Penguins face global warming threat
WWF: Climate warming threatens Antarctica Penguins

Image: Adelie penguin from a photo by Michael Van Woert, NOAA NESDIS, ORA

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Science tattoo collection reaches 100 - December 11, 2007

scitatZimmer.jpgI’ve been waiting for this excuse to blog about Carl Zimmer’s Science Tattoo collection – the 100th tattoo has gone online. Not that Carl himself has 100 science tattoos; the centenary entry in his collection is from Michelle Vieyra, of the University of South Carolina, who has a tasteful sea turtle and DNA motif (blog post).

The full set ranges from simple neurons to full body entomology pieces. As far as we can make out though Carl is as yet un-inked...

December 10, 2007

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James Watson ‘16% black’ claim - December 10, 2007

The saga of James Watson has taken a strange twist. Slated recently for saying of Africa “all our social policies are based on the fact that their intelligence is the same as ours - whereas all the testing says not really”, it turns out Watson is himself 16% black.

Analysis of his genome, produced recently as part of the trend for celebrity sequencing, reveals 16% of his genes are from an ancestor of African descent, according to reports in UK newspapers (Times, Independent).

“This level is what you would expect in someone who had a great-grandparent who was African. It was very surprising to get this result for Jim,” says Kari Stefansson of deCODE Genetics which carried out the analysis (both stories carry this quote).

What analysis they carried out isn’t clear. There is no immediately obvious publication or press release that this is pinned to. A figure of “16% black” is also pretty precise. Personally I’d like some more information on exactly how they reached this figure. While some bloggers are celebrating this perceived comeuppance others are, like me, not convinced.

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Shuttle and Euro lab grounded - December 10, 2007

STS122NASA.jpgThe space shuttle will not fly again this year, NASA said Sunday. It cited a faulty fuel sensor in putting back a mission which would hoist Europe’s Columbus lab up to the International Space Station.

Launch on Sunday was abandoned after one of four engine cut-off sensors gave a false reading when the shuttle’s external fuel tank was being filled. A previous launch attempt on December 6th was delayed after two of the sensors gave false readings. NASA requires all four of the sensors, which shut down the shuttle’s main engines if fuel runs low, to be working (NASA press release).

“Sensor No. 3 has failed,” NASA launch commentator George Diller said early on Sunday morning. He helpfully added: “This is not good news.” (McClatchy Newspapers.)

The Houston Chronicle said a third sensor had malfunctioned after problems with the first two on the 6th. Sunday’s fault was apparently with one of those that originally misbehaved. Problems with the gauges previously surfaced in 2005 but NASA believed it had solved these, the paper says.

“We were ready to fly, but understand that these types of technical challenges are part of the space program,” said the astronauts due to visit space on this STS-122 mission (NASA). “We hope everyone gets some well-deserved rest, and we will be back to try again when the vehicle is ready to fly.”

A new launch may be attempted early in January.

More on Columbus – Nature news story (subscription required).

Image: shuttle Atlantis stands on Launch / NASA/George Shelton

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Nuclear lab hacking linked to China - December 10, 2007

computer_hackingGETTY.jpgA hacking attack on government laboratories in the United States has been traced back to China. Laboratories including the Oak Ridge site were subjected to sophisticated and coordinated attack last week (lab statement).

Although classified information was not obtained other, non-classified databases were compromised in October and attacks were not just limited to Oak Ridge. Facilities including the Los Alamos nuclear lab were targeted (ABC). Now this breach has been linked to IP addresses in China, according to confidential memos from the Department of Homeland Security (NY Times).

“At this point, we have determined that the thieves made approximately 1,100 attempts to steal data with a very sophisticated strategy that involved sending staff a total of seven ‘phishing’ e-mails, all of which at first glance appeared legitimate. At present we believe that about 11 staff opened the attachments, which enabled the hackers to infiltrate the system and remove data,” says Thom Mason, director of the Oak Ridge laboratory (NY Times).

ABC diplomatically notes, “Investigators have not been able to determine whether the attacks came from government or private entities in China.”

Image: Getty

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Stripping for science - December 10, 2007

What would you do for funding? In an attempt to highlight red-tape and a lack of grants in Italy a group of medical researchers have stripped off.

Following in the grand tradition of risqué calendars, scientists from the Pascale Foundation produced a tasteful set of photos illustrating themselves at work. Albeit at work starkers…

Article on Spiegel.
Image gallery at Spiegel (safe for work).

December 07, 2007

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Weekly round up - December 07, 2007

What’s been on The Great Beyond this week and a few extras...

Continue reading "Weekly round up" »

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$300m for Moore’s massive telescope - December 07, 2007

TMT.jpgThe founder of IT firm Intel has pledged $200 million for what is being claimed as the world’s largest telescope. When it starts scientific work sometime in 2016 the Thirty Meter Telescope will consist of 492 individual 1.45-metre segments creating a total diameter of, you guessed it, 30 metres.

The gift comes under the auspices of the Gordon and Betty Moore Foundation, set up by Intel co-founder Gordon. Almost matching donations of $100 million from the University of California and the Caltech will bring the total from this gift to $300 million (press release).

Currently in a $79 million design-development phase, the telescope had prior to this been granted $50 million in support from other sources. Maybe they’ll now decide to change the name to something like Moore’s Massive Monitoring Mechanism?

However its ‘largest telescope’ badge won’t last for long if the Europeans get their way. Although plans for a 100 metre, and much more impressively named, Overwhelmingly Large Telescope have been scaled back, a 42 metre ’scope is still on the cards....

More on Moore- News coverage in The Daily Californian, The LA Times.
- List of huge telescopes across the world.
- Gordon Moore game his name to Moore’s law, featured recently on The Great Beyond.
- Nature’s philanthropy special.

Image: credit TMT Observatory Corporation

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First X-Prize entrant seeks Moon gravy - December 07, 2007

MoonNASA.jpgThe first team has registered for the X-Prize for private Moon missions that was announced back in September. Odyssey Moon, based in the semi-independent Isle of Man off the UK coast, thinks it is in with a chance of taking the $20 million first prize.

Odyssey’s chairman Ramin Khadem told AFP, “People have not really thought through the potential the moon represents. The Moon is the eighth continent and we need to exploit it in a responsible way. We want to win the Google prize and, if we do, that will be gravy. But either way we are going to the Moon.”

The man behind Odyssey, Robert Richards, added: “Our business plans have been in development for a series of missions to the Moon during the International Lunar Decade in support of science, exploration and commerce. ... . Future generations will view the Google Lunar X PRIZE as the turning point of the 21st century, when humanity realized the Moon’s critical role for prosperity and survival in space and on Earth” (press release pdf).

The exploitation side of things is clearly motivating a lot of this, given $20 million is unlikely to cover your costs if you go to the Moon. Gregg Maryniak, executive director of the XPrize Foundation, has likened the Moon to a “natural storehouse of resources that we can use to enhance life on Earth and explore our universe” according to the SF Chronicle. The paper notes though that some participants are aware that divvying up the Moon could be controversial.

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Kangaroos’ great, great, great, great grandfather - December 07, 2007

kangaroo-and-babyCORBIS.JPGThe ‘great, great, great, great grandfather of modern kangaroos’ walked on all fours and had nasty looking fangs, according to a new paper. Named Nambaroo gillespieae, this prehistoric Skippy had muscular fore-limbs, showing it didn’t follow the body plan that gives modern kangaroo’s their distinctive, if ridiculous, method of locomotion.

“It would be another ten million years or so before grasses started to spread across the Australian landscape, and with it kangaroos adapted to grazing and evolved to hop on their hind legs,” says researcher Ben Kear of La Trobe University, lead author of a paper describing the new species (press release).

In addition, the fossil analysed shows an opposable digit on the feet, suggesting the animal may have indulged in a spot of climbing when the fancy took it. Its canine fangs were probably used for scaring rivals and attracting mates, suggests Kear.

According to a paper published in the Journal of Paleontology, Nambaroo gillespieae was not-hopping in the Oligo-Miocene, between 33.9 million and 5.33 million years ago.

“Looking at a skeleton like this is the Rosetta stone: it's the quintessential fossil that will give you the beginning of the whole kangaroo radiation. ... This is really the great, great, great, great grandfather of modern kangaroos” says Kear (Sidney Morning Herald ... The Age).

Image: Corbis

December 06, 2007

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BP back in the tar sands business - December 06, 2007

oil-refineryGETTY.bmpOil giant BP is moving back into tar sands in Canada (press release). While others have been hard at work on this fossil fuel source, BP abandoned it as uneconomic nearly a decade ago.

Now the company’s new deal with existing player, Canada-based oil company Husky Energy, is worrying environmentalists who have already been protesting the development of tar sands. Even before this announcement, Greenpeace was banging on about Canadian tar sands being dirty, bad for wildlife and generally energy inefficient and calling for them to close.

Chances of a scale back in tar sands work would seem even slighter now BP is on board. This latest hook up is, says Greenpeace, “very disappointing” (Times).

Key to the BP-Husky deal is the Sunrise oil sands field owned by Husky. This is expected by BP and Husky to be sanctioned in 2008 and to eventually produce 200,000 barrels of oil a day when it gets up to speed.

Despite environmental concerns, Canada’s markets seem happy. Stocks rose for the first time in three days on the news (Bloomberg). The deal could be worth over $10 billion say some sources, although officially it’s set at about $5 billion.

We’re probably going to see more and more of this kind of thing. If ‘normal’ crude oil is getting expensive / scarce sources like the tar sands are going to look more and more appealing...

UPDATE

Another avenue for ‘new’ fossil fuels is to make more use of the ones we’ve already found. As prices increase it is becoming more attractive to keep previously uneconomic fields going. To prevent ‘premature decommissioning’ in the North Sea, the UK’s government has given a tax break for companies keeping their field running (full story at the Guardian).

For the long view, see Nature’s news feature from January - Energy: That's oil, folks (subscription required).

Image: an oil refinery / Getty

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Dolphins love a weedy male - December 06, 2007

The dolphin equivalent of Champaign and roses has been uncovered by researchers working in the Amazon. You might think the ideal gift to present to your dolphin paramour might be a fish but apparently the key to success in love is to carry stick, or some weeds...

While dolphins have previously been seen carrying a wide variety of objects, this is the first suggestion that it is related to something other than playful behaviour. Tony Martin and Vera da Silva are convinced that it is all about sex. Sometimes, it seems, it can pay to have something stuck in your teeth when on a date.

Of the groups of dolphins in the Amazon that were carrying objects such as weeds, most contained adult females. Those carrying the object were most often adult males and these males were 40 times more aggressive to other males than non-carrying dolphins, New Scientist reports (subscription required).

There doesn’t seem to be actual evidence that the sticks are directly linked to wooing though. Maybe it is just that girl-dolphins like aggressive boy-dolphins, and aggressive boy-dolphins like carrying sticks. Then again, I could be anthropomorphising them there.

Running with this story
Dolphins woo females with bunches of weeds – Daily Telegraph
Amazonian dolphins say it with weeds – AFP

In other dolphin news, Cambodia and the UN are aiming to save the endangered Irrawaddy dolphin from extinction. Fisherman will be encouraged to switch their business to dolphin watching, preserving the food supply for the Irrawaddy (AFP).

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Moon rock sheds a little light  - December 06, 2007

Kalihari9.jpgFor something so close and so obvious, it is sometimes surprising how little we know about the Moon. A paper in this week’s Nature gives us a bit more understanding, by dating one of the oldest Moon rocks we have down here on Earth.

Based on previous samples from ‘up there’ it has been proposed that most Moon volcanism occurred about 3.8-3.9 Gyr. The new paper suggests that there was volcanism on the Moon relatively soon after it formed, sometime around 4.35 Gyr.

Under the admittedly-not-hugely-catchy title ‘Cryptomare magmatism 4.35 Gyr ago recorded in lunar meteorite Kalahari 009’, researchers report the results of “ion microprobe U–Pb dating of phosphates in a lunar meteorite, Kalahari 009, which is classified as a very-low-Ti mare-basalt breccia”. Basically they worked out how old a fragment of the moon a meteorite from there is.

The meteorite probably fell to Earth about 250 years ago, after being chipped off the moon by an asteroid (National Geographic). This new knowledge could help understanding of planetary evolution, says one of the researchers involved.

“We want to understand how the Solar System formed, how the planets formed. The Moon is the only place where you can go to find the first 500 million years of geological history, because these old rocks have been lost on Earth,” Mahesh Anand from the UK’s Open University told the BBC.

Check out Nature’s 2006 Moon Special.

Image: Kalahari 009 / Institut fur Planetologie, Universitaet Muenster.

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Oh no, Knut again! - December 06, 2007

Knutwithcake.JPGMuch as I had been hoping to avoid this, the sheer volume of news about the first birthday of polar bear Knut is forcing my hand. Those living in a hole for the last 12 months may have missed the saga of Knut, rejected at birth by his mother, threatened by animal rights enthusiasts (who rather counter-intuitively wanted him put down), and embraced by the public for his cuteness.

Well Knut is rather less cute now. He’s a massive 100kg bear (image gallery at zoo). He recently celebrated his birthday at the Berlin Zoo where he is resident and where, as I discovered to my cost this morning, the hold music on their telephone system is screaming monkeys.

To mark this day the bear was given a cake made of fish, fruit, vegetables and rice (Reuters). Enjoy it while it lasts Knut, Deutsche Welle says three new polar bear cubs are on the way at your Berlin zoo and they’re going to be cuter than you are now.

In the inconceivable situation that someone out there hasn’t had enough of this attention seeking show off bear, you can try and beat the Great Beyond’s score of 10 out of 12 on Spiegel’s Knut Quiz.

Please note that headlines you may have come across proclaiming ‘Knut accused of engaging in politics’ concern the Kenya National Union of Teachers, not the giant celebrity fur ball.

UPDATE
In the Germany zoo cake stakes Knut has been well and truly outshone. According to Reuters, gorilla Matze and orangutan Charly celebrated 50th birthdays with a cake each at Frankfurt Zoo today. Rather than Knut’s fish-based creation, their cakes were are far tastier sounding “pastry and mandarin with cream on top -- but with no sugar”, according to a zoo spokeswoman.

Image: Knut with his cake / Courtesy of the Zoo Berlin archive

December 05, 2007

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Life between the (mica) sheets - December 05, 2007

micalife.jpgThe first life on Earth began in the protected spaces between sheets of mica. So says Helen Hansma, of the University of California, Santa Barbara.

Presenting her hypothesis at this week’s American Society for Cell Biology, Hansma says her ‘soup and sandwich’ is more plausible than the rival idea of life appearing in a prebiotic soup. Mica, she thinks, provides ideal conditions for molecules to organise into cells. She cites the chemical and physical similarities between a cell interior and the space between mica sheets – they are both being potassium-rich and negatively-charged. Movements of mica sheets could have helped shift molecules and triggered bond formation between them (press release one, press release two).

Nature’s Brendan Maher is blogging the conference at the In The Field blog:

While looking at a chunk of mica under a microscope one day, she noticed bits of organic gunk growing in between it’s flaky layers and thought, “Hey that would be a neat place for an organism to thrive.” Having spent years tuning atomic force microscopes to observe biomolecules on mica sheets, she knew how amenable the structure of mica is to interaction. Another clue had her hooked on the hypothesis. No one, she says, has ever adequately explained how cells first obtained potassium.

The story also appears on LiveScience/Fox News and Xinhua.

Image: sketch showing hypothesis for the evolution of different types of biological molecules in the spaces between mica sheets. Image width is ~50 nm. Courtesty Helen Greenwood Hansma, UC Santa Barbara

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Elephant news triple bill - December 05, 2007

elephantsGETTY.JPGKeeping tabs on your friends and relations isn’t easy if you’re an elephant: they don’t have mobile phones and they don’t tend to let you know what they’re doing on Facebook. So elephants keep track of their family members by smelling their urine.

A study published in Biology Letters shows that African elephants can recognize up to 17 females and possibly up to 30 family members from cues present in the urine–earth mix. They can even keep track of where these individuals are in relation to themselves (study).

The researchers presented elephants with urine samples from non-family members, family members who were close by and family members who were some way behind the pachyderms in question. In the first case the lead elephant of a herd wasn’t really bothered. In the second they evinced some interest. In the third they were positively intrigued.

“The cliche is that elephants have big memories and we wanted to find out what they used them for. They are keeping track of their family members,” says researcher Lucy Bates of the University of St Andrews in Scotland (Telegraph).

Fellow researcher Richard Byrne told the BBC, “If you think of a comparable human situation - perhaps a mum in the supermarket with three kids and a husband who'd rather be looking in the DIY section - keeping track of four or five people is really quite a strain. But our elephants are doing it in parties of 20 to 30 family members.”

Keeping track of even one elephant is proving problematic for humans in Nepal though. And this is the largest of its kind.

Continue reading "Elephant news triple bill" »

December 04, 2007

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FDA’s lack of science ‘puts lives at risk’ - December 04, 2007

FDA logo.gifScience at the US drug regulator is simply not up to the job of keeping America safe. This is the worrying conclusion of a new report by the Food and Drug Administration’s own science advisory committee (report PDF).

“The wheels are coming off. In fact, I would say they're off. They’re already off,” said report co-author Gail Cassel (ABC).

The FDA Science and Mission at Risk report comes on the back of numerous incidents that have raised questions about the agency’s ability to function. Indeed, the FDA’s own reports have previously warned that without budget increases it would be pushed to do its job. The new report says this is already happening (USA Today).

The report states, “science at the FDA is in a precarious position: the Agency suffers from serious scientific deficiencies and is not positioned to meet current or emerging regulatory responsibilities”. Also in the report is this rather important point: “FDA’s inability to keep up with scientific advances means that American lives are at risk.”

For sheer impact it’s hard to beat the key findings:

- The FDA cannot fulfill its mission because its scientific base has eroded and its scientific organizational structure is weak.
- The FDA cannot fulfill its mission because its scientific workforce does not have sufficient capacity and capability.
- The FDA cannot fulfill its mission because its information technology (IT) infrastructure is inadequate.

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Climate: hoaxes and divorced Canadian drunks - December 04, 2007

alcoholPunchstock.jpgWhile the world’s climate experts meet in Bali, the rest of the world is getting on with the serious business of elaborate hoaxes and stating the obvious. First up: activists from the Rising Tide movement successfully impersonated a major business group and pretended they were going to cut carbon emissions by 90%.

“Leading scientists say decisive action must happen now to reduce our emissions. However, corporate interests have stymied substantive action and are derailing genuine efforts of civil society to adequately address climate change,” says Matt Leonard, member of the movement (press release). Wired has a full interview.

The spoof press release was supposedly from the US Climate Action Partnership, which counts General Motors, Shell, and environmentalists’ bête noire Rio Tinto among its members. Both blogs and news sources were taken in: examples with later retractions at Thomson Financial News (story, correction) and It’s Getting Hot In Here (original, correction).

USCAP issued the following terse statement (reproduced in its entirety):
A fraudulent news release was distributed today that misstates the positions of the US Climate Action Partnership (USCAP). In addition, the release cites a website that does not represent USCAP or its views. Neither USCAP nor its member organizations were involved in the development of this website or the distribution of today's announcement. This fraudulent website has been shut down.

Below the fold – why it’s all the fault of drunk Canadian divorcees anyway...

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‘Nazi’ rocket man’s PhD for sale - December 04, 2007

VonBraunBonhams.JPGA secret dissertation prepared for the Nazi regime by the father of modern rocketry goes under the hammer today. The 166-page manuscript, prepared by Wernher von Braun, is expected to sell for up to $30,000 when auctioned at Bonhams in New York (sale page, press release).

Von Braun worked on Germany’s World War II rockets before being secretly spirited away to the United States at the end of the conflict. There he helped to perfect ballistic missiles before leading NASA’s Marshall Space Flight Center and playing a crucial role in the space race.

The document up for sale today, entitled Design, Theoretical and Experimental Contributions to the Problem of the Liquid-Fuel Rocket and prepared for Von Braun’s PhD dissertation, was classified as ‘Top Secret’ and unpublished till 1960. It appears for auction alongside a copy of Mein Kampf signed by Adolf Hitler. “It’s one of the first monographs about rocket science. It represents that moment of inception. People are fascinated with the exploration of space and this is one of the documents that symbolizes the space travel,” says Christina Geiger of Bonhams (Bloomberg).

As the Guardian’s coverage of this story notes, there is some debate over Von Braun’s motivations and whether he was just a scientist attempting to get on with his work. Appropriately enough a new biography of Von Braun was recently published that explores this issue (reviewed at The Space Review).

UPDATE – 5/12/07
The final selling price of the thesis was $33,000.

Also, due to multiple complaints from readers about this omission, I am updating with a link to Tom Lehrer’s song Wernher von Braun.

Image: courtesy Bonhams

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Shuttle replacement problems surface - December 04, 2007

AresNASA.jpgPlans for the replacement of the aging and ailing Space Shuttle are looking pretty shaky following a report from the US congressional spending watchdog. The Government Accountability Office says there are “gaps in the knowledge about requirements, costs, schedule, technology, design, and production feasibility” for the Ares I rocket. Which seems to me to be just about all of it.

“While NASA still has 10 months under its own schedule to close gaps in knowledge about requirements, technologies, costs, and time and other elements needed to develop the Ares I system, the gaps we identified are fairly significant and challenging given the complexity and interdependencies in the program,” says the report.

Democrat Bart Gordon, chairman of the House Committee on Science and Technology Chairman, commissioned the report. “GAO’s assessment is a mix of good news and not-so-good news,” he says (press release). “On the one hand, GAO has concluded that NASA is taking steps to demonstrate that the Ares I project is achievable within the constraints that the project faces. On the other hand, GAO has identified a number of significant challenges that will have to be overcome if the project is to succeed.”

The Space Politics blog notes the reports concerns about the budget for the Constellation programme, which includes both the Ares I launcher and the Orion crew vehicle. Comments on the blog raise the spectre of the Columbia disaster, where planning problems are thought to have contributed to the accident.

Image: Ares artistic impression / NASA

December 03, 2007

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Christmas gift round up - December 03, 2007

GIFTSstand_back_nature.jpgUnsure what gifts to buy the scientist in your life? Check out the Great Beyond’s Great Gifts.

NB: These are pulled from a random trawl of the internet - they're not endorsements and Nature can't vouch for the products.

If you’ve seen anything that should be included here let me know, we’ll update right through to Christmas Eve.
 
 

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Dinosaur of the day – mummified-o-saurus - December 03, 2007

DinoAutopsy_31.jpgA dinosaur complete with skin, tendons and perhaps even internal organs has been uncovered in the US. Although it is being billed as “mummified”, the skin and tissues on this hadrosaur have actually been turned to stone. Crucially however, they have been preserved.

“This is not a skin impression,” Phil Manning of the University of Manchester told Reuters. “This is fossilized skin. When you run your hands over this dinosaur's skin, this is the closest you are going to get to touching a real dinosaur, ever.”

Rapid deposition of mineral-rich sand over the carcass of ‘Dakota’ probably preserved the tissue (press release, photo gallery).

The fossil was originally discovered by grad student Tyler Lyson in North Dakota in 1990, hence the imaginative name. In 2004 he returned to it and uncovered the skin. At that point Manning was called in. “When I first saw it in the field, (I thought) ‘Shiiiit, that's a really well preserved dinosaur’,” he says (Wired).

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Robot boxing - December 03, 2007

Sometimes the headline says it all. Jet-propelled attack heads, victory dances, penguin body armour...

Just watch the video...

The Robo-One competition seems to have both autonomous and remote-controlled robots, the latter of which seems a bit of a cheat to us.

Robot competition has a fine history: check out Nature archive stories about previous comps (subscription needed):
Robolympics contestants shoot for gold
Germany thrashes Japan in RoboCup
Robot car scoops US$2-million prize

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Saving the world from paradise - December 03, 2007

coral-reef-islandALAMY.jpgNB – NATURE’S BALI SPECIAL WILL BE LIVE SOON

The world’s leading climate experts, and some very lucky journalists, are camped out in Bali this week attempting to thrash out a deal to save the planet from global warming. Olive Heffernan is there for Nature Reports Climate Change and has a round up of what is up.

It is also timely that a new review in Nature Geoscience shows the tropics expanded by 2.5 degrees latitude over the last 25 years; the same margin as models predicted for the whole of this century (study, example news coverage).

Unfortunately, as the Daily Telegraph reports, those in Bali can’t even agree on a way to offset the carbon they all emitted in getting there. The paper estimates that the summit will cause emissions of about 100,000 tonnes of CO2, “on a par with the annual emissions of the African state of Chad”.

Still, it’s a little early to be writing off the talks. Here’s a round up of some of the other news so far.

- Indonesia's Environment Minister Rachmat Witoelar, the meeting’s host, thinks business must be helped to invest in tackling climate change (Reuters).
- Spontaneous applause for Australia over their agreement to ratify the Kyoto Protocol, first announced last week (Sidney Morning Herald).
- Korea is not going to accept compulsory emission reduction (Korea Times).
- The Chinese delegation insisted that ‘principles of common but differentiated responsibilities’ must be acknowledged (Xinhua).

Image: Alamy