Scientists digitally reconstruct the scene of a dinosaur chase - preserved in the mud of an ancient river bed in Texas.

The European Union begins the roll-out on Thursday of the biggest Earth-observation programme ever conceived - with the launch of the Sentinel-1a radar satellite from French Guiana.

A planned expansion of badger culling to reduce TB in cattle is being abandoned after culls in pilot areas were ineffective, the government says.

One of the UK's top doctors says there is an accumulating body of evidence that highlights a link between urban green space and benefits to human wellbeing.

New measurements by Nasa's Cassini probe suggest Saturn's moon Enceladus hides a mass of liquid water as big as Lake Superior under its icy surface.