The astronauts of Apollo 15 didn't just land on the moon, they drove on it.
Gus Grissom made the second American sub-orbital flight in his Mercury capsule, Liberty Bell 7, on July 21, 1961.
Since April 12, 1981, NASA has been sending shuttles into orbit, launching and repairing satellites and building the International Space Station.
Commander Chris Ferguson and the Atlantis crew carry supplies to the International Space Station on the final mission of the space shuttle.
The Mars rover Spirit has finished its work, far outliving its original lifespan to make discoveries about water and past environments on Mars.