BBC

Researchers investigating a cave in France have identified mysterious stone rings that were probably built by Neanderthals.

The contract is signed that will lead to the construction of one of this century's key astronomical facilities - the European Extremely Large Telescope.

A possible grizzly-polar bear hybrid has been shot by a hunter in northern Canada.

Success is declared by the team drilling into the Chicxulub Crater, the deep scar made in the Earth's surface by the asteroid that hastened the end of the dinosaurs.

A study finds that bizarre, tentacled worms which live attached to crayfish are at risk of extinction, alongside the crayfish themselves.

A news crew has been filming tornados outside Dodge City in Kansas. At least two people were injured in severe storms.

The sun-powered aircraft Solar Impulse takes off from Dayton, Ohio, on a 750km flight to Lehigh Valley in Pennsylvania.

Dosing farm animals with antibiotics increases greenhouse gas emissions from cow dung, research suggests.

Stunning photos of Yellowstone beauty spots in 1871 and today

The world's biggest publicly traded oil company faces a critical AGM under pressure from a broad coalition of shareholders on climate change.

Two more satellites in the Galileo network are launched to orbit, putting the EU's version of GPS on course to start services at the end of the year.

European scientists are working on techniques that would allow them to routinely monitor the health of corals worldwide from orbit.

US biochemical engineer Frances Arnold takes the million-euro Millennium Technology Prize for pioneering 'directed evolution'.

Approval for fracking in North Yorkshire raises the prospect of the controversial technique being allowed at other sites and restarts an intense debate.

Five glimpses inside China's scientific revolution

Virtual reality technology used in the gaming industry could be utilised to recreate crime scenes for jurors, researchers claim.

Wu Pinggui talks to the BBC after having an operation to transplant a pig's cornea into his eye.

The scientist and author discusses his legacy - and giving up Twitter

Chinese drinkers may have been brewing beer as many as 5,000 years ago, new research suggests.

Darren Soh, a landscape photographer, creates a composite image that captures the beauty of Singapore's lightning storms.