SPOTTED: Discovery's last ride ... right over our office!

As seen over the Alexandria (Virginia) waterfront about 15 minutes ago ...

Space Shuttle Discovery atop the Boeing 747 shuttle carrier aircraft on its final flight to Washington-Dulles, where it will join the collection at the Udvar-Hazy annex to the Smithosonian Air and Space Museum. The Discovery replaces the Enterprise, which has been sent to the Intrepid museum in New York City.