The European Space Agency launches a second radar satellite into the EU's new Sentinel constellation, to acquire a complete map of the Earth every six days.

Supporting evidence that the Beagle-2 probe is sitting intact on the surface of Mars has come from a new imaging technique developed by UCL scientists.

The covers come off the huge mirror that the James Webb Space Telescope - the planned successor to Hubble - will use to detect the light from the first stars to shine in the Universe.

A conservationist plans to take flight this autumn alongside thousands of swans as they make a 4,500-mile journey from the Russian arctic to the UK.