Climate change is causing a breed of wild sheep in Scotland to shrink, according to research in the journal Science.
The US space agency's Lunar Reconnaissance Orbiter spacecraft sends back its first images since reaching the Moon.
The world's largest cat is down to an effective wild population of fewer than 35 individuals, new research has found.
Species around the world are still being lost despite governments pledging action to reverse the trend, a report warns.
TerreStar-1, the world's biggest commercial telecommunications satellite, is put in orbit by an Ariane 5 rocket.
A team of scientists identifies thousands of tiny genetic variations which raise the risk of schizophrenia.
Scientists hope hi-tech tags will help reveal why puffin numbers at one of the UK's key colonies have fallen by a third.
French investigators believe the Air France plane that crashed in the Atlantic broke up on contact with water, not in mid-air.
Copycat chimps build their own tools after watching a video demonstration, says a team of British scientists.
Argentine ants living on three continents belong to the same colony, the largest of its kind ever known.
How Air France debris gives clues to jet's break-up
Surveillance camera footage sheds light on baby babble
US moonwalker Buzz Aldrin looks to new frontiers
Building for a wet but secure future in Bangladesh
The Californian origins of home computing
A compromise on whaling that just may work
China's insatiable appetite for resources has led to the nation being unfairly portrayed as the world's biggest environmental villain.
Numbers of 18 woodland bird species have crashed.
Prides are all about defending territory, not hunting.
The European Space Agency releases a stunning image of the spiral "Whirlpool Galaxy".
Virgin Galactic boss Will Whitehorn says the UK needs a proper regulatory framework to expand private spaceflight activity in the country.
The most complete terrain map, covering 99% of the Earth's surface, has been published and will be free to use.
Having sex every day improves sperm quality and could boost the chances of getting pregnant, research finds.
Swiss adventurer Bertrand Piccard unveils a prototype of the solar-powered plane he hopes to fly around the world.
A beautifully preserved dinosaur found in the US retains remarkable detail of skin cells.
Cyclists, buses, cars and even pedestrians become mobile pollution detectors in a UK-based scientific project.
Britain can massively expand wind power by 2030 without suffering power cuts, a report says.
An epidemic of mountain pine beetles, which has devastated forests in British Columbia, is threatening to spread.
The invasive Harlequin ladybird is putting native ladybirds and over 1,000 species in the UK in peril, according to scientists.