It is likely a decision will be made on Friday on where to site one of the great scientific projects of the 21st Century - the Square Kilometre Array.

A grid of 25,000 "invisibility cloaks" shows how to slow light down and spread out its constituent colours in an advance dubbed "trapping a rainbow".

Researchers excavating a cave in Germany identify what they say are the oldest-known musical instruments in the world.

Conservationists in the Philippines express outrage over what they say is a lenient punishment for a farmer who shot and ate a rare eagle.

It may be possible to make a new form of male contraceptive after scientists in Edinburgh find a critical gene for the production of healthy sperm.

The latest round of UN climate talks makes little progress against a "coalition of the unwilling", observers say.