STS-51-L
Quick Summary
The STS-51-L mission, aboard the space shuttle Challenger, tragically ended in an explosion 73 seconds after liftoff on January 28, 1986. All seven astronauts on board perished. Among the crew was Christa McAuliffe, a teacher selected to be the first private citizen in space, whose presence highlighted the mission's goal of inspiring students. The disaster, witnessed live on television, led to a significant halt in space shuttle missions for over two years and prompted a thorough investigation into NASA's safety protocols and management. The cause was traced to a faulty O-ring seal in a solid rocket booster, exacerbated by cold weather conditions.12
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
Challenger disaster…primary goal of shuttle mission 51-L was to launch the second Tracking and Data Relay Satellite (TDRS-B). It also carried the Spartan Halley spacecraft, a small satellite that was to be released by Challenger and picked up two days later after observing Halley’s Comet during its closest approach to the…
Read More…primary goal of shuttle mission 51-L was to launch the second Tracking and Data Relay Satellite (TDRS-B). It also carried the Spartan Halley spacecraft, a small satellite that was to be released by Challenger and picked up two days later after observing Halley’s Comet during its closest approach to the…
Read More
Ronald McNairMcNair was assigned to the STS-51L mission of the space shuttle Challenger in January 1985. The primary goal of the mission was to launch the second Tracking and Data Relay Satellite (TDRS-B). It also carried the Spartan Halley spacecraft, a small satellite that McNair, along with mission specialist Judith Resnik,…
Read MoreMcNair was assigned to the STS-51L mission of the space shuttle Challenger in January 1985. The primary goal of the mission was to launch the second Tracking and Data Relay Satellite (TDRS-B). It also carried the Spartan Halley spacecraft, a small satellite that McNair, along with mission specialist Judith Resnik,…
Read More
