Lola Gayle, STEAM Register January 28, 1986 was a tragic day in NASA history. At 73 seconds into its flight (11:39 EST, 16:39 UTC), NASA Space Shuttle Challenger broke apart, leading to the deaths of its seven crew members as the orbiter disintegrated over the Atlantic Ocean, off the coast of Cape Canaveral, Florida. STS-51-L crew:…