BBC

Rising temperatures could boost mercury levels in fish by up to seven times the current rates, say Swedish researchers.

The seeds of domesticated plants could offer clues as to why cultivated crops are larger than their wild cousins, a study suggests.

A tiny possum, an emblem of the state of Victoria in Australia, is rapidly heading towards extinction, say scientists.

US scientists draw controversy as they claim to have fulfilled the decades-long quest to turn hydrogen into a state where it behaves like a metal.

Meet the Sellafield engineer who says playing with pink toys will not deter girls from science careers.

Canada has unearthed the biggest diamond ever found in North America - the Foxfire.

World Bank funding is being used to subsidise fossil fuel projects at the expense of cleaner options, a study reports but it is a claim strongly disputed by the World Bank.

On 27 January 1967, the crew of Apollo I were killed when the rehearsal for their mission went wrong.

The remains of a religious pilgrim shed light on how leprosy came to Europe, researchers say.

A rare sea turtle discovered washed up on an Anglesey beach is closer to full health after scans reveal why she found it difficult to dive.

Embryos that are about 0.001% human could lead to human organs being grown in animals.

The minute hand of the symbolic Doomsday Clock moves to two-and-a-half minutes to midnight.

UK astronaut Tim Peake talks about returning to space as the capsule that carried him to the ISS goes on display.

The capsule that carried Tim Peake to and from the International Space Station goes on display at London's Science Museum.

University is fined £400,000 after students are given 100 times too much caffeine in an experiment.

Are the Trump team's actions on climate and energy the opening shots in a war on knowledge?

How do scientists assess the scale of dirty air across the UK and just how dangerous is the air that we breathe?

Cats are as good as dogs at certain memory skills and may be just as smart, say scientists.

A "very high" air pollution warning has been issued for London for the first time under a new alert system.

The president's support for Keystone XL and Dakota Access proves he is a climate threat, critics say.