The arrival of Discovery in D.C. will prompt the departure of another shuttle that is in D.C. now, the shuttle Enterprise. Enterprise will head up to New York where it will be on display at the Intrepid Sea, Air & Space Museum.
Discovery is the oldest space shuttle, first in space in 1984, and has gone into space 39 times since; its most recent flight being in February 2011.
Visitors at Kennedy Space Center said their goodbyes to the shuttle today, before its departure at 4AM tomorrow.
NASA workers spent the weekend preparing the shuttle for its trip to D.C. and put it on the back of a Boeing 747 which will land in D.C. at 10-11AM tomorrow in D.C.
Florida residents are sad to see the shuttle go, but happy it will be put in a national museum.