Discovery space shuttle launch
The Nasa space shuttle Discovery is launching on its final mission, following months of delay.
The shuttle will ferry its crew of six to and from the International Space Station, delivering a storage module and a sophisticated humanoid robot to the outpost.
Discovery has made 38 trips into space, including an April 1990 mission to deploy the Hubble Space Telescope.
24 Feb 2011
- From the section Science & Environment