Astronomy

Hubble clocks faster cosmic expansion

Astronomers probe below Jupiter's clouds

Alma telescope peers into space

Contract to construct giant telescope

China's science revolution

Hubble takes super-snap of Mars

Kepler telescope discovers new planets. Video, 00:02:08Kepler telescope discovers new planets

More than 100 Earth-sized planets found

Park achieves 'dark sky reserve' status

'Alien Earth' among eight new planets

Rare images of Mercury passing Sun. Video, 00:01:05Rare images of Mercury passing Sun

Mercury completes journey across Sun

Football camera captures Mercury transit. Video, 00:00:17Football camera captures Mercury transit

Tributes for Nobel Laureate Harry Kroto

Groups rising to Mercury's transit

US firefighters backtrack on meteorite

James Webb's mirror is revealed

Gravity mission passes 'sanity check'

In pictures: Stargazing

Sighthill standing stones being removed

Lasers could 'cloak Earth from aliens'

Japanese satellite lost in space?

Why can’t Easter date be fixed? Video, 00:02:16Why can’t Easter date be fixed?