The latest stories from the Science & Environment section of the BBC News web site.
Updated: 9 min 46 sec ago
Scientists use impact craters to work out the characteristics of the air on Mars 3.6 billion years ago.
A facial recognition database being built by the FBI could contain over 52m images by 2015 causing concern to privacy campaigners
Just what is the black ring in Leamington Spa?
The combination of fire and extreme weather events could accelerate tree mortality in the Amazon, a study suggests.
Moving a dinosaur skeleton across the US
Edinburgh Zoo's giant Panda Tian Tian is artificially inseminated.
Your photos across the Americas of lunar eclipse
Skywatchers in the Americas have caught a rare celestial show caused by the Earth's shadow falling across the Moon.
People in the Americas have been treated to a rare "blood moon" lunar eclipse. Jonathan Amos explains the science behind the colour change.
A record 73% of beaches in the UK have "excellent" water quality because of last summer's dry weather, says the Marine Conservation Society.
How to prep dinosaur remains for a 2,000 mile road trip
Colombia's Casanare region ill-prepared for drought
A wild male marmoset is filmed embracing and caring for his dying female partner.
Air pollution in China and other Asian countries is having far-reaching impacts on weather patterns across the Northern Hemisphere, a study suggests.
A 13-year-old catching foxes with her golden eagle
Work is under way to protect one of the UK's rarest seabirds which breeds on a shingle beach in north Wales.
Streetlights on a 500m stretch of highway in the Netherlands are replaced by glow in the dark road markings in a pilot project.
Mapping the ocean floor where missing Malaysian jet may be
More than 1,098kg (2,421lb) of fish is removed from a Wiltshire canal in a bid to stop illegal fishing.
The US defence department is working on how to use old drones to provide wi-fi in remote locations, such as on the battlefield.