President and NASA honor fallen astronauts
NASA paused Thursday to remember more than a score of astronauts who were lost in the line of duty.
URL: http://www.msnbc.msn.com/id/41298090/ns/technology_and_science-space/
NASA paused Thursday to remember more than a score of astronauts who were lost in the line of duty.
URL: http://www.msnbc.msn.com/id/41298090/ns/technology_and_science-space/