Nasa's science chief John Grunsfeld tells planetary scientists he is "in there fighting for you" after the cuts proposed to the agency's exploration budget.

Engineers in the US say they have invented a hydrogen-powered robot that moves through water like a jellyfish.

Tiny shrimp-like creatures known as copepods break through the ocean's surface and leap through the air to escape predators, US scientists say.

Could extracting gas threaten South Africa's wild beauty?

At Chilean firm Biosigma, bacteria is used to extract copper from rocks, replacing extreme heat and toxic chemicals.

New World Bank analysis says illegal logging makes $10-15bn (£7.5-11bn) for criminal gangs worldwide, and urges justice authorities to get tough.

Explorers are to begin a new push to find the remains of famed aviator Amelia Earhart's long-lost plane, focusing on the Pacific Ocean island nation of Kiribati.

By disrupting the behaviour of animals that disperse plant seeds man-made noise could be transforming our landscape, scientists say.