This great photo captures old glory in the forefront on the final flight of the Space Shuttle Discovery, launched two days ago. Discovery is the first in the fleet to be retired this year. Endeavour and then Atlantis will close out the 30-year shuttle program by midsummer. Discovery is the oldest of the three and the most traveled, with 143 million miles logged over 39 flights and 26 years. It had a rendezvous with the International Space Station this afternoon.