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Vanderlecia Ortega dos Santos is the sole nurse caring for a community of 700 in Manaus, Brazil.

An 11m-wide asteroid passed within 60,000km of Earth on Friday, making it one of the 20 closest recorded approaches to our planet.

Scientists detect water-ice on the surface of an asteroid for the first time.

Lutetia, a giant asteroid visited by the Rosetta probe, is covered in a thick blanket of dusty debris at least 600m deep.

Japan's Hayabusa capsule is opened to reveal particles that may be samples from a near-Earth asteroid.

A California company owned by UK businessman Sir Richard Branson fails to launch a rocket to orbit.

A California company owned by UK businessman Sir Richard Branson fails to launch a rocket to orbit.

Meat and milk from cloned cattle and their offspring is safe to consume, an independent panel of scientists says.

From Homer’s Odyssey to Alexander Pope, it has been a source of fascination over the centuries. But was the ancient war a grim reality or pure myth? Daisy Dunn weighs up the evidence.

The bond between female siblings has never been a more potent subject for dramatists, with hits from Little Women to Frozen putting it front and centre, writes Natasha Tripney.

Children are able to remember memories from their very earliest years, but forget them as they mature.

Plans to reduce the height of wood-based properties contradicts advice to increase construction.

A gene therapy technique which aims to ease memory problems linked to Alzheimer's Disease has been tested in mice.

A study sheds light on how certain alarm cries made by meerkats are more effective at alerting other members of the group to possible dangers.