The latest stories from the Science & Environment section of the BBC News web site.
Updated: 16 min 7 sec ago
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After a historic but awkward comet landing, the robot probe Philae is now stable and sending pictures - but faces concerns about its battery life.
Researchers across Europe have expressed dismay at the scrapping of the role of EU Chief Scientific Adviser (CSA).
Earlier this year astronauts on the International Space Station shot a video showing what happens to water surface tension in microgravity
Scientists face a tense wait to learn the fate of a robot probe that made a historic landing on a comet - but did not stay in place as planned.
A robot makes the first, historic landing on a comet, but its status remains uncertain after anchoring harpoons fail to fire.
The pilot who survived the Virgin Galactic spaceship crash was thrown clear as the craft broke up around him, investigators say.
"It's landed - I've waited years for this", Professor Monica Grady has said, on finding out that the robot probe Philae had landed on a comet.
"Generations" of scientists have celebrated the landing of the probe Philae on a comet 300 million miles away, Dr Matt Taylor has told BBC News
European robot probe Philae has made the first, historic landing on a comet, after descending from its mothership.
Controllers make radio contact with the Philae robot as it becomes the first manmade object to descend to a comet.
Archaeologists in northern Greece find a skeleton inside a tomb from the time of Alexander the Great, and believe it belonged to a general.
What's behind US climate deal with China
The biological passport was test that couldn't be fooled, so why are athletes still doping?
Physicists send a beam of twisted light 3km through the air above Vienna, transmitting information in this way for the very first time in the open air.
Parts of Canada and the US get their first blast of winter, sending temperatures plummeting by as much as 22C (40F) in days.
China and the US unveil "historic" new pledges on greenhouse gas emissions, as the two leaders meet for talks in Beijing.
Ministers have "completely oversold" the potential of shale gas, researchers from the UK Energy Research Centre tell the BBC.
Meet the medical motorbike couriers battling infant HIV in Malawi