Astronomers have found a large planet, Kepler-452b, which they say is 'the closest twin to Earth'
'Ice mountains' reveal evidence of water on Pluto, as scientists begin downloading probe data
The UK has reversed its policy of unmanned space missions, meaning Britons can now become astronauts
Unmanned drones are becoming commonplace in a variety of industries across the globe
Conjunction of Venus and Jupiter will 'lift our attention away from our own little world into the enormous things beyond'
Hack gave GCHQ and NSA access to billions of calls and mobile data, according to new Snowden leak
Don't panic: the asteroid will miss us by a comfortable 745,000 miles – but nothing will get closer until 2027
Mission will be like 'trying to balance a rubber broomstick on your hand in the middle of a wind storm'
Extra second needed this summer to allow atomic time to synchronise with the Earth's rotation
Maiden flight of capsule that could help humans reach the Red Planet heralded as a 'landmark moment'