An orb weaving spider spins decorations to protect its web from damage, according to researchers.

A leading Brazilian rainforest conservationist and his wife are found dead, hours before Congress debates changes to deforestation rules.

The US space agency confirms that the vehicle it will use to send astronauts beyond Earth to places like asteroids will be based on its Orion capsule concept.

High concentrations of bacteria found in the centres of hailstones add to the idea that bacteria may stimulate precipitation in order to get around.

Nasa engineers concede they are unlikely ever to hear from the Mars Spirit rover again and are ceasing attempts to make contact with it.

Dogs use the same complex technique as cats to lap up liquid, scientists are surprised to find.

UK flights are expected to return to near-normal after hundreds were cancelled on Tuesday because of drifting ash from the Icelandic volcanic eruption.

Brazilian legislators pass a law easing environmental regulations, which conservationists say will fuel destruction of the Amazon rainforest.