The latest stories from the Science & Environment section of the BBC News web site.
Updated: 27 min 23 sec ago
A giant barrel jellyfish has been spotted swimming in an estuary near St Mawes in Cornwall.
Nasa uses a flying saucer-shaped vehicle to test new landing technologies for use at Mars - with partial success.
The Biological Records Centre, which supports more than 80 of the UK's wildlife recording societies and schemes, celebrates its 50th anniversary.
Ships sunk in World War One to be offered increased protection
The European Space Agency initiates the process that should lead to the biggest X-ray telescope ever built going into orbit in 2028.
The government may have failed to protect the interests of bill payers when awarding green energy contracts, say auditors.
Is animal welfare helping to kill wild apes?
Insects find locating their favourite flowers gets harder when there are competing smells around, new research shows.
Nasa says the most complex test yet of the parachute system for its Orion spacecraft proceeded without a snag.
"Drastic action" is needed to contain the spread of deadly Ebola in West Africa, according to the World Health Organization (WHO).
What information is driving new search for flight MH370?
Guenon monkeys' colourful and varied faces have evolved as a way to avoid crossbreeding, new research shows.
Making solar cells with a salt used in tofu manufacturing could make generating energy from the Sun much cheaper, say scientists.
Researchers say that "immediate protection" is required for the pristine waters around the remote Pitcairn Islands in the Pacific.
Analysis of a 50,000-year-old scrap of human faeces adds weight to the view that Neanderthals ate plants as well as meat.
Police forces use latest scanning tech to record crime scenes
Late drug lord's hippo herd stages local land grab
Antibiotic resistance has been selected as the focus for a £10m prize set up to tackle a major challenge of our time.
Researchers have developed a new manufacturing method which could bring down the cost of making a type of solar cell.
Scientists have developed a vaccine that they say provides some protection against brain tumours in mice by boosting the immune system.