OTD…Jan. 24 and STS-51C

#OTD in 1991…Atlantis launched another of NASA’s Tracking and Data Relay Satellites

America’s first space shuttle launched on this day 35 years ago as the reusable flying machine, Columbia, lifted off from Kennedy Space Center with John Young and Bob Crippen aboard.

Today in 1986…Space shuttle Challenger and her seven astronaut crew were lost during launch.