did you know that on this date

[link to earthsky.org]

January 28, 1986. On today’s date, the Space Shuttle Challenger (mission STS-51-L) exploded and broke apart 73 seconds into its flight, after an O-ring seal in its right solid rocket booster (SRB) failed at liftoff. The explosion led to the deaths of all seven Challenger crew members. The spacecraft disintegrated over the Atlantic Ocean, off the coast of central Florida at 11:38 EST (16:38 UTC).