Beagle 2: The mystery of the missing space probe
11 years ago the European Space Agency attempted to send a probe to Mars to search for signs of life. However, Beagle 2 vanished while attempting to land on Christmas Day in 2003.
On Friday, the UK Space Agency will provide an update on the ill-fated craft, which has not been heard from since.
The BBC looks back at the mystery of the missing spacecraft.