The latest stories from the Science & Environment section of the BBC News web site.
Updated: 17 min 32 sec ago
US universities make symbolic return to Iran
A bid to start the UK's first fracking operation in four years near the Lancashire coast is being examined
'Star Wars'-style hover bikes could be coming to the US military after engineers in the UK and US struck a deal with the US Department of Defense.
Silicon chips that mimic the function of living human organs win the Design of the Year award from the Design Museum in London.
The Scottish government publishes "radical" proposals aimed at widening the ownership of land across the country.
Director Christopher Nolan talks about the importance of accurate science in making his film Interstellar, after a leading scientific journal calls for it to be shown in school lessons.
A scientific journal calls for the film Interstellar to be shown in school science lessons.
The second of the European Union's Sentinel Earth-observing satellites launches on a mission that will allow scientists to map the performance of the world's crop harvests.
Modern humans and Neanderthals interbred in Europe, according to an analysis of 40,000-year-old DNA.
Canadian group Urthecast plans to put a 16-satellite constellation in orbit to image the Earth, including making small movies of what is happening at the surface of the planet.
The Earth has entered a "new period of extinction", a study by three US universities concludes, and humans could be among the first casualties.
More than a ton of confiscated ivory is crushed in New York's Times Square to send a message that the illegal trade will not be tolerated.
Scientists say they have the best evidence yet that there is hot lava spewing from the surface of Venus.
Europe's Philae comet lander has been back in touch with Earth - its first contact since Sunday.
Hundreds of thousands of tiny crabs have been washing up on Southern California's beaches, after warm ocean currents carried them closer to the shoreline than usual.
The women scientists who failed to get credit
The Pope issued his letter on the environment on Thursday. In it he said that climate change was mostly a man-made problem.
Scientists report that wild kangaroos tend to favour their left hands in common tasks - the first example of non-human, species-wide "handedness".
Most illegally poached African elephant ivory can be traced back to just two areas of Africa, research shows.
DNA tests show an ancient skeleton known as Kennewick Man is related to modern Native Americans - reigniting a debate over whether his bones should be returned to local tribes and reburied.