Papua New Guinea has yielded what looks like the smallest frog species ever seen, just 7mm long, along with a marginally bigger relative.

Dogs are able to keep warm even when they stand on frozen ground, thanks to a specialised circulation system in their paws, say scientists.

Nasa's Mars Science Laboratory, currently en route to the Red Planet, makes a big course correction to align better its path towards an August landing.

The evil villains in James Bond movies are being blamed for giving nuclear power a bad image, says the president of the Royal Society of Chemistry.

Astronomers at the American Astronomical Society meeting say they have determined what colour the Milky Way would appear to have from outside.

Archaeologists' chance encounter with an islander leads them to the site of a possible medieval fishing station on the Western Isles.

A cheetah on its way to Russia is stopped at Heathrow Airport by border staff suspicious about its missing identity microchip.

A $10m (£6.5m) prize will be awarded to whoever can create a Star Trek-like hand-held medical diagnosis device.