Maths behind Internet encryption wins top award

Abel prize awarded to number theorist John Tate.

How 1918 flu antibodies fend off swine flu

Structural similarities reveal why some elderly people were spared in the recent pandemic.

Fossil finger points to new human species

DNA analysis reveals lost relative from 40,000 years ago.

Methane-eating microbes make their own oxygen

Bacteria may have survived on Earth without plants, thanks to unique metabolism.

Soils emitting more carbon dioxide

Trend could exacerbate global warming.