OTD…June 2 and STS-91

#OTD in 1997…Atlantis launched on the seventh joint docking mission with Russia’s space station Mir

#OTD in 1995…Columbia launched on a microgravity science Spacelab flight

NASA’s Kepler planet-finder began its mission to discover Earth-like worlds orbiting other stars in the galaxy today in 2009, successfully launching aboard a Delta 2 rocket from Cape Canaveral.