Who were the people who died in the challenger explosion?

The Challenger explosion on January 28, 1986, tragically claimed the lives of seven crew members: Christa McAuliffe, a teacher and the first private citizen selected to go to space; Francis R. Scobee, the commander; Michael J. Smith, the pilot; Ronald McNair, a mission specialist; Ellison Onizuka, a payload specialist; Judith Resnik, a mission specialist; and payload specialist Geraldine "Jerrie" Cobb. The disaster occurred just 73 seconds after launch, due to the failure of an O-ring seal in one of the solid rocket boosters. The loss of these individuals profoundly impacted the space program and raised concerns about safety protocols.