The latest stories from the Science & Environment section of the BBC News web site.
Updated: 14 min 31 sec ago
Tens of thousands of penguin couples gather in Antarctica for their nesting season.
The head of the US delegation at UN climate talks warns of a "major breakdown" in the process if negotiators fail to come to an agreement in Lima.
Talks continue through the night at the key UN climate summit in Peru, with major divisions between rich and poor nations hampering progress.
The first colour image from the Rosetta spacecraft shows that Comet 67P is even more dark and monochrome than expected.
Landing on a comet, laser fusion and a working tractor beam are among the physics breakthroughs of the year, as chosen by a leading magazine.
The EU may scrap plans for legislation on air pollution and waste in a drive to boost the economy.
Had you heard the phrase "weather bomb" until this week? Newsnight's Stephen Smith has been looking into weather's new exotic language
Meet your personal drone - it weighs four grams
Images uploaded to social media websites hold valuable data that could be used to help protect or manage natural spaces, a study suggests.
The clinical trial of an Ebola vaccine in Switzerland has been interrupted after some patients complained of joint pains in their hands and feet.
US Secretary of State John Kerry's appearance at the climate talks in Lima is being seen as evidence of America's new engagement with the UN process.
By copying organs found in spiders’ legs, engineers build a sensor that can detect tiny vibrations, including speech and blood flow.
The Lima suburb where 10% of income goes on water
Activists apologise for any "moral offence" that Greenpeace has caused, after a publicity stunt on the ancient Nazca lines in Peru.
Drug resistant infections will kill an extra 10 million people a year worldwide by 2050 unless action is taken, a study says.
Data from Europe's Rosetta probe suggest that water on Earth may not have come from comets, scientists conclude.
A record number of seals have been born at the Donna Nook sanctuary nature in Lincolnshire.
Singing spaceman Chris Hadfield meets Manchester pupils
UK astronaut Tim Peake has invited members of the public to suggest digital experiments to be carried out in space.
Catholic bishops from around the world are calling for an end to fossil fuel use and increased efforts to secure a global climate treaty.