Ten years of public sightings show that large marine mammals are regularly found in the River Thames.

Chemists discover a way to take carbon dioxide from the air and make carbon nanofibres, a valuable manufacturing material.

The US space agency has issued another of the "selfie" portraits acquired by its Curiosity rover on Mars, but this one is taken from a much lower angle.

British troops are on their way to Gabon on the west coast of Africa to tackle an increase in ivory poaching.

July was the hottest month on Earth since records began in 1880, according to US scientists.

A new study confirms humans' status as a unique super predator, and points to ways our impacts on other species could be lessened.