Space

Congress demands answers from NASA

First anniversary of Neptune's discovery

NASA launches robotic gas station

China want to explore the Moon, Venus and Mars

Swatch from Apollo 11 flag fails to sell

Atlantis achieves orbit on final mission

Hubble successor could be for the chop

Cassini monitors biggest-ever Saturn storm

Hydrogen peroxide found in interstellar space

'Dirty hack' brings Cluster mission project back to life