Russian scientists warn growing level of debris in orbit around Earth may trigger conflict
Discovery by Nasa space telescope could help explain how holes regulate size of galaxies
Five-year-old boy sent his postage query to Royal Mail, which enlisted the help of Nasa
Discovered less than two weeks ago, the Great Pumpkin will make a 'close pass' on Halloween
'Who would have expected a blue sky in the Kuiper Belt?' asks mission leader. 'It's gorgeous'
Today Nasa marks its 57th birthday – but how did it begin and what has it achieved?
US space agency to send astronauts 'in near future' after evidence of flowing water found on red planet
Millions of people around the world enjoyed the rare celestial event that sparked doomsday fears
'Nerds unite' behind Muslim boy led out of school in handcuffs after invention mistaken for bomb
Astronomers have found a large planet, Kepler-452b, which they say is 'the closest twin to Earth'
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'
Extra second needed this summer to allow atomic time to synchronise with the Earth's rotation
Today's black supermoon will coincide with a solar eclipse, prompting a rash of amateur astronomy
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'
Rumours circulating online suggested that a massive solar storm would lead to six days of darkness this month