Science Space.com

'Space can unite a troubled country in troubled times': NASA chief calls for unity 55 years after Apollo 11 moon landing
The sun's next solar cycle has begun, 'starquakes' suggest
Polaris Dawn crew shows off new SpaceX spacesuits for 1st private spacewalk (photos)
NASA delays ISS spacewalks indefinitely to investigate spacesuit coolant leak
A high-speed particle struck the Gaia space telescope — but Gaia came back stronger than ever
How to make a comet