BBC

Scientist Vladimir Uglev has no doubt the agent that poisoned the Skripals was made in Russia.

Nasa's Transiting Exoplanet Survey Satellite (Tess) searches for new planets.

Plan for ban in England announced as Commonwealth leaders urged to join fight against plastic waste.

A record number of Nepalese women are climbing Mount Everest this spring season, officials tell the BBC.

The US space agency's Tess satellite lifts off on a mission to find thousands of new worlds.

Wild equines are being reintroduced to the grasslands of Kazakhstan where they once roamed in large numbers.

Recurring spells of ocean warming impact the diversity of coral reef communities.

The alternative to ice involves pumping livers with blood, nutrients and medicines while in a machine.

Experts describe the challenges facing those investigating an alleged chemical attack in Syria.

China's nuclear fusion research might put the country at the fore of future clean energy solutions.

Scientists at University College London (UCL) bestowed the honour on Sir David Attenborough and the documentary team.

The UK's biggest coffee chain says it will recycle as many disposable cups as it sells by 2020.

The space rock that exploded in 2008 seems to have come from the early Solar System.

The young female porpoise had become stranded at Grange burn near to Grangemouth.

Poland violated EU law by ordering large-scale logging in Bialowieza forest, Europe's top court says.

Karen Nyberg, who's been to space twice, answers questions from primary school children.

A senior Nasa engineer has said the first person to set foot on Mars should be a woman.

It's not as easy to recycle your takeaway coffee cup as people may have thought.

The launch of the Tess mission to find new worlds beyond our Solar System is delayed by 48 hours.

Science created a 'wonder material' in plastic; now nature is helping to unmake it.