BBC News

A European space telescope measures the precise positions and distances to over one billion stars.

A new study says dozens at the Oland island fort were killed and left to rot where they fell.

The French president received more than one standing ovation in his remarks to Congress on climate change.

Things are unusually quiet in Oklahoma and Kansas this year as 2018 could see the latest start to the tornado season on record.

The UK is looking at its own sat-nav system if the EU locks it out of Galileo because of Brexit.

This Brittany farm could be available to someone who will preserve its traditional methods.

Scientists have modified a plant's genes to make it produce high levels of a key malaria drug, potentially helping meet the large global demand.

Discovery prompts fear that melting ice will allow more plastic to be released back into the oceans.

A vet gives advice on how to assist dehydrated bumblebees emerging from hibernation.

The planet Uranus has clouds made up of hydrogen sulphide, the gas that gives rotten eggs their unpleasant smell.

An activist who helped expose a water crisis in a US town has been awarded a prestigious environment prize.

New York City's ex-mayor pledges $4.5m to help cover the lapsed US contribution to the Paris accord.

The newly discovered canopy-dwelling ants are nicknamed after their bizarre defensive behaviour.

The man building a four-storey castle out of recycled plastic bottles.

Erosion of the cliff at Hemsby, Norfolk, has left 18 homes uninhabitable over the past five years.

A Nasa flight analyst explains three things you need to know about going to Mars.

The endangered animal died in Italy during an attempt to fit him with a collar to track movements.

The best and worst space films, according to Nasa

People across the UK have been enjoying unusually warm weather, but when can we call it a heatwave?

An international team found that a protein causes brain cells to die when it is stuck in the jelly phase.

Engineers finish assembly of the test model for Europe's ExoMars rover mission.

The new director-general of the National Trust says the charity needs to reach out to people in urban areas.

Designer Stella McCartney says fashion is a medieval industry, which produces a huge amount of waste.

The world-famous specimen is the world's best-preserved example of the extinct bird.

The gender gap in science subjects like physics is likely to persist for hundreds of years, study suggests.

In an example of human natural selection, Asia's Bajau people have evolved bigger spleens for diving.

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

Plan for a ban in England is announced as Commonwealth leaders are urged to tackle plastic waste.

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

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

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

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.

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

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

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

Scientists at University College London (UCL) decide to honour Sir David Attenborough and the team.

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.

Calaya, the western lowland gorilla, gave birth at the Smithsonian National Zoo in Washington, DC.

UK astronomer Bill Chaplin demonstrates the noises that stars make and why this is useful to know.

The Tess mission will survey nearly the entire sky and is expected to find thousands of new worlds.

A new study shows that some species may become victims of their own prestige.