July 20, 1976: Landing on the red planet

#OTD…Launch of the first shuttle mission to service a satellite in space in 1984

European technicians working at the Baikonur Cosmodrome in Kazakhstan have bolted an Italian-built Mars lander to its mothership ahead of a March 14 launch toward the red planet.

#OTD in 1994…Columbia launched on a Spacelab microgravity flight