OTD…May 4 and STS-30

#OTD…Launch of Columbia in 1998 on the Neurolab Spacelab mission

#OTD…Launch of a 1993 environmental mission on Discovery and Atlantis’ ISS flight in 2002

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.