“Given the fact that Massoud Ali Mohammadi was a nuclear scientist, the CIA and Mossad services and agents most likely have had a hand in it.”

Abbas Jafari Dolatabadi, Iran’s chief prosecutor, says the US and Israel may be behind the death of nuclear scientist Massoud Ali Mohammadi, who was killed in a bomb attack in Tehran (AFP).

“Charges of US involvement are absurd.”

State Department spokesman Mark Toner responds.

“This is an avalanche. On another planet. Caught as it happened.”

Phil ‘Bad Astronomer’ Plait gets very excited by some new photographs from NASA’s HiRISE camera, which is currently flying round Mars.

“What we are witnessing is a fundamental shift in thinking about ICT from a focus on optimizing networks for maximum capacity to optimizing them for energy efficiency.”

Bell Labs President Jeong Kim comments on plans to make networks like the internet 1,000 times more energy efficient in the future (CNET GreenTouch blog).

“There’s nothing positive that you can say about this metal. It’s a poison.”

Bruce Fowler, of the US Centers for Disease Control and Prevention, discusses cadmium, which an investigation by AP has found in some children’s jewlery from China.