The latest stories from the Science & Environment section of the BBC News web site.
Updated: 10 min 15 sec ago
The European Space Agency gives financial backing to a Scottish project to use an app to map tick hotspots and tackle Lyme disease.
Rescue work resumes after the latest deadly earthquake in Nepal, after thousands of scared residents spent the night in the open.
Is surviving on 20-minute naps bad for you?
Russia delays for about a month the return of three astronauts on the International Space Station after the recent failure of its supply spaceship.
Dozens die as a new earthquake of magnitude 7.3 strikes Nepal, two weeks after a devastating tremor killed more than 8,000.
The El Nino event, which can drive droughts and flooding, is under way in the tropical Pacific, say scientists.
What triggered Nepal's second big quake?
Sri Lanka becomes the first nation to comprehensively protect all of its mangrove forests, using a model that conservationists hope other nations will adopt.
The water vole once populated our riverbanks and waterways in the UK, but in the last 15 years water vole numbers have halved, brining them to the brink of extinction.
Trounced by a brain-training octogenarian
Royal Dutch Shell wins approval from the US Department of Interior to explore for oil in the Arctic.
The sixth Sentinel in Europe's ambitious new multi-billion-euro Earth-observation project is contracted from industry.
A goldfish has gone under the knife for a third time for a 45-minute operation to remove multiple tumours from around its eye and back.
Jo Johnson, the brother of London Mayor Boris Johnson, is to be the new Minister for Universities and Science.
The fascinating bright spots on the surface of the dwarf planet Ceres are shown to be a clutch of many smaller dots in new, higher resolution images.
Green groups and low-carbon firms have welcomed the appointment of Amber Rudd as new head of the energy and climate department, DECC.
David Cameron is appointing his new cabinet with Amber Rudd, John Whittingdale and Sajid Javid among those promoted - but there's no job for Boris Johnson.
Why did Ancient Egyptians mummify animals in their millions?
A scanning project suggests that about a third of Ancient Egypt's animal mummies are empty.
Already legally defined as Australia's "National Gemstone", the country's precious opals are punting for a new international designation - that of Global Heritage Stone Resource.