The latest stories from the Science & Environment section of the BBC News web site.
Updated: 4 min 56 sec ago
Two Russian cosmonauts set off on a spacewalk from the International Space Station (ISS) to launch a nano-satellite.
Two rare birds usually found in the Mediterranean region are spotted building a nest at a nature reserve in Lincolnshire.
The risk of an eruption at Iceland's Bardarbunga volcano has increased, as well as the risk level to the aviation industry, meteorologists say.
Africa's elephants have reached a tipping point, where more are being killed each year by poachers than are being born, a study suggests.
A gorge in Taiwan, cut through rocks raised by a 1999 earthquake, is disappearing at an unprecedented rate, along with geological evidence.
The two brightest planets, Jupiter and Venus, are currently aligned in the sky, forming a spectacular "double star" in their closest conjunction since 2000.
Doctor puts a high-meat diet to the test
Amazon river turtles communicate with their hatchlings and with one another using vocalisations, recordings reveal.
Research into Richard III's bones and teeth reveals the last Plantagenet king drank about a bottle of wine a day in the last years of his reign.
Sweet-toothed scientists can apply for a "multidisciplinary PhD on chocolate" at the University of Cambridge.
The US marine park SeaWorld is to build a new killer whale enclosure as criticism grows over how the park handles the animals.
Scientists discover the secret behind the super-white shells of some beetles.
New research suggests that the idea of "the thieving magpie" being attracted to shiny objects may be a myth.
Researchers are developing mathematical models to help identify genetic material that could improve food crops' resilience to climate change.
Science dispels the popular myth that magpies like to steal shiny objects for their nests.
Why villagers think Boscastle floods were a good thing
How much of the gold we need can we get from recycled phones?
A study of trained dolphins has suggested that the marine mammals use express pleasure with squeals of delight.
A record number of students have had their university places confirmed, figures from admissions body Ucas show.
Scientists in Germany have pieced together a stunning mosaic image of the Martian surface.