BBC

The drug combination was unable to cure four patients, who had all visited Africa, doctors say.

Removing invasive exotic plants from natural areas can act as a boost for wildlife, a study suggests.

Researchers have discovered the earliest known ancestor of humans - along with a vast range of other species.

Australian researchers hope an antibody found in sharks may help treat an incurable lung disease.

The man who ran National Grid for a decade says news stories raising blackout fears should stop.

Huge coral system reef where the Amazon River meets the Atlantic Ocean was discovered last year.

A project aims to investigate the social case for gardens and what impact they have on well-being.

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.