Canada will formally withdraw from the Kyoto Protocol on climate change, the first nation to pull out of the treaty, the environment minister has said.

A team of physicists have adapted a 195-year-old design to create a laser-driven heat engine that can be seen only under a microscope.

Scientists at the Large Hadron Collider say they may have glimpsed the fabled Higgs boson, but are not yet able to claim a discovery.

Advances in neuroscience suggest the age of criminal responsibility might be too low, a Royal Society report says.

France, China and Japan criticise Canada for formally withdrawing from the Kyoto Protocol on climate change, but Australia defends Ottawa's decision.

An African lungfish uses a pair of fins to walk and bound across the bottom of its tank, scientists find.