The bounce back in the extent of sea ice in the Arctic this summer was reflected also in the volume of ice, according to new data from Europe's Cryosat spacecraft.

Some of the youngest lava flows on the Moon are within reach of China's Jade Rabbit rover, says a leading lunar scientist.

Google acquires the engineering company that developed Cheetah, the world's fastest-running robot and other animalistic mobile research machines.

Mothers perceive their youngest children as shorter than they actually are, a study suggests.

Chinese doctors save a man's severed hand by grafting it to his ankle, buying time before reattaching it to his injured arm.

Scientists say they have developed a way of predicting who will develop altitude sickness.

The US challenges makers of antibacterial soaps to prove they are safe, warning a chemical in such products may be harmful.