Nasa plans landing on 40m-wide asteroid travelling at 28,000mph

Read more (http://www.guardian.co.uk/science/2008/may/07/starsgalaxiesandplanets.spaceexploration)

Asteroid 2000 SG344 (http://en.wikipedia.org/wiki/2000_SG%E2%82%83%E2%82%84%E2%82%84)