The fossil of a prehistoric snake that lived alongside the dinosaurs has been found entombed in amber.
PM commits to laws that will ensure environmental protection improves - but not everyone is convinced.
More and more young people are living without the car. Will the government change its road-building plans?
The man who photographed the Tutankhamun dig
Tracking polluting sulphur dioxide from space
Distant moons may be the most plentiful habitats in the galaxy
Koala's genes could halt sex disease
How trees talk and share resources underground
Turning the world's yachts into a research fleet
15 sayings from around the world