Discovery shuttle leaves space station.
POSTED: Wednesday, September 9, 2009 - 9:33am
UPDATED: Thursday, February 25, 2010 - 12:34pm
Space shuttle Discovery left the International space station on Tuesday.
Discovery undocked from the orbiting space station on Tuesday and its departure ended more than a week of being at the space station after leaving tons of supplies and equipment. The shuttle and its crew of seven are due back to earth on Thursday.