Ancient grasses from the Pampas of Argentina were preserved in glass when asteroids struck the area, scientists report.
US company SpaceX launches its latest re-supply mission to the International Space Station, sending up a Dragon freighter to rendezvous with the orbiting platform on Sunday.
Female insects with 'penises' have been discovered in Brazil - the first example of an animal with sex-reversed genitalia.
A planet that is close in size to the Earth and that could hold water on its surface has been identified by the Kepler telescope.
A British project to capture CO2 and bury it under the North Sea looks set to receive a 300m-euro boost from the EU.
Scientists say they have discovered what could be the birth of a new moon in the rings of Saturn.
The first images come back from the radar satellite launched as part of the European Union's new flagship Earth-observation project.
Artists' brains are structurally different to non-artists in areas relating to fine motor movements and visual imagery, a study finds.
The boom and bust of men's beard fashions may mirror Darwinian selection, scientists say.
Scientists use impact craters to work out the characteristics of the air on Mars 3.6 billion years ago.
The European Parliament has approved new legislation to stem the spread of invasive species such as "killer" shrimp or Japanese knotweed.
The combination of fire and extreme weather events could accelerate tree mortality in the Amazon, a study suggests.
Air pollution in China and other Asian countries is having far-reaching impacts on weather patterns across the Northern Hemisphere, a study suggests.
Birds learn to choose the the best building materials for their nests, rather than building from instinct, say scientists.
A facial recognition database being built by the FBI could contain over 52m images by 2015 causing concern to privacy campaigners
Skywatchers in the Americas have caught a rare celestial show caused by the Earth's shadow falling across the Moon.
A new treatment for hepatitis C cured 90% of patients with the infection in 12 weeks, say scientists after studies in Europe and the US.
The US defence department is working on how to use old drones to provide wi-fi in remote locations, such as on the battlefield.
The competition to manufacture the next generation of Europe's most important series of weather satellites is won by Airbus Defence and Space.
Four women have had new vaginas grown in the laboratory and implanted by doctors in the US.
New research shows that when a threat comes into view fruit flies make split-second turns reminiscent of those made by fighter jets.
A record 73% of beaches in the UK have "excellent" water quality because of last summer's dry weather, says the Marine Conservation Society.
Streetlights on a 500m stretch of highway in the Netherlands are replaced by glow in the dark road markings in a pilot project.
A wild male marmoset is filmed embracing and caring for his dying female partner.
A long-awaited report on how to curb climate change says the world must rapidly move away from carbon-intensive fuels.
As the UN's climate panel meets in Berlin, Germany's fossil fuel industry is as busy as ever, reports David Shukman.
Pet rabbits need better legal protection in the UK, according to an animal welfare researcher.
Six months after a rare tiger cub died, London Zoo's new triplet cubs have been given a clean bill of health.
A female osprey which produced two chicks last year returns to the same nest in the Lake District.
CCTV cameras capture the first osprey egg of the season to be laid at a reserve in the south west of Scotland.