Judy Resnik was an American astronaut who died in the Space Shuttle Challenger disaster in 1986. She received degrees in electrical engineering and worked as an engineer before being selected to join NASA as an astronaut. Resnik flew on the Space Shuttle Discovery and was scheduled to be aboard Challenger for its fatal 25th mission, which broke apart 73 seconds after launch due to an O-ring failure, killing all seven crew members including Resnik. She was remembered for her contributions to the space program through various memorials and scholarships established in her honor.