The latest stories from the Science & Environment section of the BBC News web site.
Updated: 12 min 50 sec ago
Populations of marine mammals, birds, fish and reptiles have nearly halved since 1970 due to human activity and climate change, a report says.
Can video games make a positive difference?
Researchers develop a game for pensioners that is designed to help them sharpen their mental faculties.
Amazon founder Jeff Bezos announces plans to build and launch rockets from Florida’s “space coast”.
A new reconstruction captures the moment Europe's Philae probe first approached Comet 67P in November last year.
A smoothed reconstruction captures the moment the Philae probe first approached Comet 67P in November last year.
Electricity pylons are to be removed in four areas of England and Wales to reduce their visual impact on the landscape.
Critics hail Nicole Kidman as "luminous" and "compelling" in Photograph 51, her first London stage appearance since 1998.
British entrepreneur Sir Richard Branson's space company says it is boosting the capability of its forthcoming satellite launcher.
A robot ethicist launches a campaign against sex robots, saying such products demean women and reinforce stereotypes.
How safe is artificial intelligence?
The US Navy agrees to limit its use of sonar that inadvertently harms whales and dolphins in waters near Hawaii and California.
Bats provide a service worth an estimated US$1bn globally by controlling pests on corn crops, a study suggests.
Research by Oxford University and accountancy firm Deloitte says many of today's jobs are at high risk of being automated in the next two decades.
Scientists in the US who lost a weather balloon carrying a camera sent to the edge of space have found it - and two years on are able to view its spectacular footage.
Ensuring the fastest car runs on the flattest track
Astronaut Buzz Aldrin thinks humans can not only land on Mars by 2019, but also colonise the red planet.
Rarely-seen letters shed light on Victorian tech visionary
The next two years could be the hottest on record globally, says research from the UK's Met Office.
An El Nino climate event is under way that could potentially become one of the strongest since 1950.