The latest stories from the Science & Environment section of the BBC News web site.
Updated: 18 min 24 sec ago
British astronaut Tim Peake has picked "Principia" to be the name of his mission into space next year.
Europe's mission to land on a comet was always going to be difficult, but the pictures released this week of the giant ice ball illustrate just how daunting the task will be.
A butterfly which was last seen in England more than 60 years ago is spotted on a nature reserve in Suffolk.
Australia's Senate votes to repeal the so-called carbon tax, a levy on the biggest polluters brought in by the Labor Party.
Grow-your-own pacemakers are a step closer to reality, after pioneering experiments in pigs.
Ocean exploration is going further than ever
Diamond, nature's hardest material, has been crushed to record extremes using the "world's biggest laser".
A new helmet that allows pilots to see in the dark via an integrated night vision camera is unveiled at the Farnborough Airshow.
The scientist Prof Stephen Hawking has said he supports a Bill to legalise assisted dying, ahead of a debate in the House of Lords.
After leaders of the billion-euro Human Brain Project hit back at critics, six top neuroscientists have expressed "dismay" at their public response.
The Aids epidemic can be brought under control by 2030, according to a report by the United Nations Aids agency.
New science minister Greg Clark says his brief is to continue the "excellent work" of his predecessor David Willetts.
Hundreds of bird-watchers flock to the Norfolk coast in the hope of catching a rare glimpse of a migratory great knot in British waters.
Nearly half of the British people do not know what fracking is, says Vivienne Westwood in a personal film
A marine biologist says the "horrific" sight of 55 sharks washed up on a Gower beach may be the result of trawling.
A climate-sceptic group founded by former Conservative Chancellor Lord Lawson is to relaunch after a complaint about its charitable status.
The largest ever four-winged dinosaur has been discovered in China, with remarkably long feathers on its hindwings and tail.
Carbon dioxide turned into food for farmed fish
The search for life on other planets has long inspired science fiction novelists and Nasa missions but could one of Jupiter's moons, Europa, provide proof?
Europe develops advance unmanned combat planes