Looking upward

It wasn't your everyday sight. Bolted to the back of a NASA 747 jumbo jet, the Shuttle Discovery made its last flight today, headed from the Kennedy Space Center in Florida to Dulles International Airport en route to its final home at the Smithsonian National Air and Space Museum's nearby Steven F. Udvar-Hazy Center.

We've already seen some great official NASA shots of the shuttle hitching a ride, but we wanted to see the display through the eyes of the many space enthusiasts who pointed their cameras and phones skyward today in hopes of capturing history. The results of their photographic efforts have been pouring in to Twitter all day (hashtag #SpotTheShuttle), and onto NASA's Spot the Shuttle Flickr site.

Click through our gallery to see a handful of our favorite shots from the D.C. crowd on the ground.