The Space Shuttle program was the fourth human spaceflight program carried out by the United States which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011.  There were 135 missions in total which is by far the most missions so far for a U.S. Space Program.  NASA also saw its tragedies in the loss of Challenger at launch, and Columbia in returning.

More to come!   Graphics in progress!!