The latest stories from the Science & Environment section of the BBC News web site.
Updated: 28 min 28 sec ago
Physicists in France work out several details of what makes popcorn pop, including the critical temperature required.
A toucan in Costa Rica, which lost part of its beak in an attack by youths, looks set to be fitted with a prosthetic replacement.
Britain's urban areas are home to more types of wild bee than farmland, say researchers.
The European Space Agency is about to launch a wedge-shaped craft around the Earth to test critical technologies needed for controlled re-entry into the atmosphere.
The strange experiment on UK's 720ft airship
Google unveils its latest robot - Spot
Geologists find that a huge canyon in Iceland was created by a few short days of catastrophic flooding, separated by thousands of years.
The introduction of the fox and cat from Europe is having a devastating impact on native mammals in Australia, say scientists.
Scientists gain new insights into what lies at the very centre of the Earth, with a US-Chinese team saying its inner core is made of two parts.
Government spending on research and innovation needs to be doubled to stop the UK falling behind other countries, say science leaders.
Prof Iain Stewart investigates our addiction to oil
Snowploughs in US cities are running out of space
At the centre of a mysterious nebula, astronomers discover two stars locked in such a tight orbit that they will eventually merge and explode.
Using nearly five-years worth of mapping data from the Lunar Reconnaissance Orbiter, NASA has to provided a view of the moon from the side the cannot be seen from earth.
Scientists take to the stage on climate change
Architect Craig White shows BBC reporter Victoria Gill around one of the new affordable homes made from straw bales.
The first straw bale houses in the UK to be sold on the open market go up for sale in Bristol.
What passenger planes will look like in future
A new deep space satellite will give quicker and more accurate notice about approaching solar storms.
A team of researchers in North Wales are planning to connect sheep to the internet.