OTD…April 19 and STS-100

#OTD…Launch of Challenger in 1985 on a Spacelab research 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.

#OTD…America’s first shuttle launch in 1981 and another in 1985