The latest stories from the Science & Environment section of the BBC News web site.
Updated: 6 min 6 sec ago
British astronaut Tim Peake is going through a gruelling round of final training before liftoff to the International Space Station next month.
Astronomers have identified the most distant object yet in the Solar System - a likely icy body three times further away than even far-flung Pluto.
Scientists are hoping to digitally preserve the world's most important heritage sites.
An atomic-scale fingerprint could boost the security of connected devices, according to the British scientists who have developed it.
Energy Secretary says the government remains committed to meeting renewable energy targets set by the EU following controversy over a leaked letter suggesting a shortfall.
For the first time, doctors breach the human brain's protective layer to deliver chemotherapy to a tumour.
The SeaWorld theme park in the US state of California is to phase out public displays by killer whales, its chief executive says, following public outcry.
A world-famous animal theme park is planning to phase out its killer whale displays, following years of pressure from campaigners.
Energy Secretary Amber Rudd is accused by Labour of misleading MPs about meeting mandatory EU energy targets on renewable power.
An international team of architects and scientists have observed "thermal anomalies" at the pyramids of Giza, Egyptian officials say.
An increasingly warped sense of humour could be an early warning sign of impending dementia, say experts.
A new model of the Moon's formation suggests it developed in two stages, leading to inner and outer layers with different compositions.
Russia should be suspended from athletics competition, a World Anti-Doping Agency commission report recommends.
The government's energy policy changes since the general election are likely to increase CO2 emissions, according to analysis by BBC News.
Two possible cryo-volcanoes are identified on the surface of Pluto - huge mountains with a hole in the top that may spew a slurry of ices.
The head of Indonesia's anti-drugs agency proposes building a prison island guarded by crocodiles to house death-row drug convicts.
The test model for what will become the "back end" of the Orion spaceship is sent from Europe to the US for evaluation.
The winners of science and maths prizes worth $22m have been announced at a glittering ceremony in Silicon Valley.
What happened to travelling by hovercraft?
Global temperatures are set to rise more than 1C above pre-industrial levels in 2015, according to the UK's Met Office.