The US space agency has released hundreds of eye-catching images - here are some of the best
Missing reflection loses votes for Republican White House hopeful Donald Trump - and other tall tales
Detailed photos reveal gas planet's famous Great Red Spot and three of its moons
Former virologist will attempt to carry out DNA sequencing onboard the International Space Station
There 'could be more planets than stars', say scientists, raising hopes of finding another Earth
Nasa commander shared snippets of life in orbit during 342 days on the International Space Station
Lockheed Martin charged with initial designs to create plane capable of breaking the sound barrier - quietly
Second man to walk on moon believes first manned expedition to the red planet could be achieved by 2040
Visions of the Future illustrations hailed as 'equal parts retro-chic and sheer design genius'
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