BBC News

The Royal Navy is investigating claims the wreckage of a British submarine lost during World War Two has been discovered off the coast of Sardinia.

The sun-powered aircraft Solar Impulse has landed in Lehigh Valley, Pennsylvania, after a near-17-hour flight.

HS2 is an over-priced, gold-plated project and will fail in many of its objectives a group of transport experts warns.

Shareholders at Exxon Mobil AGM reject most proposals but voted in favour of a resolution that could see a climate activist elected to the board in the future.

Researchers investigating a cave in France have identified mysterious stone rings that were probably built by Neanderthals.

The contract is signed that will lead to the construction of one of this century's key astronomical facilities - the European Extremely Large Telescope.

A possible grizzly-polar bear hybrid has been shot by a hunter in northern Canada.

Success is declared by the team drilling into the Chicxulub Crater, the deep scar made in the Earth's surface by the asteroid that hastened the end of the dinosaurs.

A study finds that bizarre, tentacled worms which live attached to crayfish are at risk of extinction, alongside the crayfish themselves.

A news crew has been filming tornados outside Dodge City in Kansas. At least two people were injured in severe storms.

The sun-powered aircraft Solar Impulse takes off from Dayton, Ohio, on a 750km flight to Lehigh Valley in Pennsylvania.

Dosing farm animals with antibiotics increases greenhouse gas emissions from cow dung, research suggests.

Stunning photos of Yellowstone beauty spots in 1871 and today

The world's biggest publicly traded oil company faces a critical AGM under pressure from a broad coalition of shareholders on climate change.

Two more satellites in the Galileo network are launched to orbit, putting the EU's version of GPS on course to start services at the end of the year.

European scientists are working on techniques that would allow them to routinely monitor the health of corals worldwide from orbit.

US biochemical engineer Frances Arnold takes the million-euro Millennium Technology Prize for pioneering 'directed evolution'.

Approval for fracking in North Yorkshire raises the prospect of the controversial technique being allowed at other sites and restarts an intense debate.

Five glimpses inside China's scientific revolution

Virtual reality technology used in the gaming industry could be utilised to recreate crime scenes for jurors, researchers claim.

Scientist and author Richard Dawkins discusses his legacy - and giving up Twitter

Darren Soh, a landscape photographer, creates a composite image that captures the beauty of Singapore's lightning storms.

The ban on GM crops by European countries should be reassessed, the president of UK science body the Royal Society has said.

An application to carry out fracking in England for the first time since a ban was lifted in 2012 is approved.

After a successful bid to frack for shale gas in a North Yorkshire village, John Moylan explains how the process works.

Wild animals including lions, crocodiles, rattlesnakes and zebras are being kept legally on private property across the UK, licensing figures reveal.

Nobel chemistry laureate spots DNA error on Turkish banknote.

A strange sea-dwelling reptile fossil suggests there was a burst of evolution after the mass extinction 250 million years ago.

BBC science correspondent Rebecca Morelle travels to China to take a close up tour of the Five-hundred-metre Aperture Spherical Telescope - or Fast for short.

Drone footage shows tourists catching an unusual sight in Shark Bay, Australia - dozens of tiger sharks feeding on a dead whale.

India launches an unmanned model space shuttle into orbit, joining the race to develop reusable space crafts.

The zero-fuel aeroplane, Solar Impulse, has landed in Dayton, Ohio, after flying from Oklahoma on the latest leg of its round-the-world journey.

A gigantic fuel tank, originally built for NASA's space shuttle programme, is making a slow journey through the streets of Los Angeles to its new home.

They have been dubbed the killer invaders that target bees and have even caused the deaths of several people in France, but has the deadly Asian hornet made it to the UK?

Two independent scientific papers identify the same single gene as the cause of red beaks and feathers in birds.

The Hubble Space Telescope produces another of its stunning portraits of Mars, as the planet lines up with the Earth and the Sun.

Councillors in North Yorkshire will consider whether to approve fracking in England for the first time since a ban on the technique was lifted in 2012.

Miniature flying robot that can perch and take off could be used in search and rescue, scientists say.

Footage has captured an eagle owl chick in Croatia meeting a human for the first time.

A global revolution in the use of antimicrobials is needed, according to a government backed report.

Bayer is offering to buy agricultural giant Monsanto in a deal that could create the world's biggest supplier of seeds and pesticides.

Scientists suggest that at least two huge tsunamis once swept across the Red Planet, triggered by large impacts.

A leaked New Zealand government memo casts serious doubts on the sustainability of fish that are widely used in McDonald's restaurants.

A study finds unchecked climate change could destabilise Antarctica's huge Totten Glacier in the coming centuries, pushing up global oceans by 2m, or more.

Neuroscientists find that when we navigate a train network, our brains split the task into a hierarchy of different jobs - a strategy that AI developers want to mimic.

A new report says that global agricultural emissions must be slashed to prevent the planet warming by more than 2C over the next century.

The Zika virus could spread to Europe this summer, although the likelihood of an outbreak is low to moderate according to the World Health Organization.

The EU's new Sentinel-2a satellite builds a cloud-free view of Africa as it moves towards full capacity mapping.

Life was already organising itself into large communities of cells more than a billion years ago, new evidence from China suggests.

A bright fireball lit up the sky across several states in the US early on Tuesday - and was captured on a police officer's dashcam.