Science & Nature
Biden urged to back AI weapons to counter China and Russia threats
A long-awaited report says the US president should ignore calls for a ban on autonomous weapons.
Radar images capture new Antarctic mega-iceberg
Spacecraft that can see through cloud get their first good look at the frozen block known as A74.
UK meteor spotted above Midsomer Norton and Bath
Social media users reported seeing a 'flash' with a 'tail of orange light' in the night sky.
Letter demands action over 'UK nature in freefall'
Wildlife experts urge the prime minister to step up action on the loss of species in the UK.
Cumbria coal mine plan 'damaging PM's reputation'
Foreign ambassadors say Boris Johnson's tacit support for the mine prompts accusations of hypocrisy.
Pompeii: Archaeologists unveil ceremonial chariot discovery
The ornate discovery was used during festivities and parades almost 2,000 years ago, experts say.
How Bitcoin's vast energy use could burst its bubble
Could the cryptocurrency's huge electricity consumption also sink it?
Aberdeen physicist behind first full-body MRI scanner dies
Prof John Mallard, formerly of Aberdeen University, was known for his pioneering work in medical imaging.
Brunt Ice Shelf: Big iceberg calves near UK Antarctic base
The berg covers 1,270 sq km - nearly 490 square miles - but its break-off was expected.
Climate change: Carbon emission promises 'put Earth on red alert'
Nations' current carbon-cutting plans will not keep global temperature rise below 1.5C, the UN says.
National Trust to plant blossom trees in cities
The National Trust is planning to plant dozens of blossoming trees to create new green spaces.
Amazon rainforest plots sold via Facebook Marketplace ads
Protected land reserved for Brazil's indigenous communities is being traded on the social network.
AI conquers challenge of 1980s platform games
A computer program that can solve 1980s exploration games could help improve robot intelligence.
How 30,000 elephant 'selfies' will help in conservation
Researchers are developing new technology to help reduce human-elephant conflicts.
Mary Anning: Fossil hunter celebrated with Jurassic 50p coins
The 19th Century fossil hunter's achievements were often overlooked during her own lifetime.
Rare bird: 'Half-male, half-female' cardinal snapped in Pennsylvania
Jamie Hill said taking the stunning photos of the northern cardinal was "once in a lifetime".
Most pheasants sold for food 'contain lead shot'
Scientists say a pledge by shooting groups to phase out lead shot has had no detectable effect.
Walker Swamp: The mission to restore an Australian wetland
Walker Swamp had been destroyed by 150 years of farming - now it is replenished and welcoming life.
Budget 2021: Chancellor must 'make finance green', say campaigners
Campaigners call for Chancellor Rishi Sunak to make system changes including a carbon emissions tax.