Photo: Troy Cryder/Zuma Press

As I mentioned before, the Space Shuttle program is winding down and as of earlier today, the Space Shuttle Endeavour has lifted off for the last time. The Space Shuttle Endeavour will soon join the Space Shuttle Discovery in a retired fleet of spaceships, with only the Space Shuttle Atlantis remaining in active service (Atlantis will probably fly for the last time sometime in June 2011).

If you missed its final lift-off, catch it in the video below.