The US space agency will attempt in the coming hours to land a one-tonne robot rover on the Red Planet to study the possibility that this world may once have hosted life.

The US space agency, Nasa, successfully lands its huge new robot rover in a deep crater on the Red Planet.

Chemotherapy can undermine itself by causing a rogue response in healthy cells, which could explain why people become resistant, a study suggests.

The way even low levels of poisonous carbon monoxide can be fatal, by disrupting the heart's rhythm, has been unravelled by researchers in Leeds.

The recent death of giant tortoise Lonesome George, the most famous resident of the Galapagos Islands, worries the tourist industry.

A satellite-tracked cuckoo takes a surprising migration route back to Africa, according to experts.

Archaeologists in Peru are getting ready to fly an unmanned craft that could radically speed up data gathering at historical sites

An orbiting spacecraft takes a spectacular image of the Curiosity rover descending to the surface of Mars.