what was the purpose of the last challenger mission
STS-51-L STS-51-L was the 25th mission of the United States Space Shuttle program, and disastrous final mission of the Space Shuttle Challenger. The mission to carry out several lessons from space and observe Halley's Comet never made its target landing date of February 3, 1986. A structural failure during its ascent phase 73 seconds after launch on January 28 from Kennedy Space Center Launch Complex 39 killed all seven crew members – Commander Dick Scobee, Pilot Michael J. Smith, Mission Specialists Ellison S. Onizuka, Judith A. Resnik and Ronald E. McNair, and Payload Specialists Gregory Jarvis and Christa McAuliffe—and destroyed the orbiter. The Rogers Commission determined that the cause of the destruction was due to the failure of an O-ring seal on the starboard Solid Rocket Booster (SRB). Space Shuttle flights were suspended for 32 months while the hazards with the shuttle were addressed.
Death Star Return of the Jedi features a second Death Star still under construction in orbit around the second moon of Endor. Emperor Palpatine and Darth Vader send the Rebels false information that the station's weapons systems are not operational in order to lure them into a trap. When the station's protective shield is disabled by a ground assault team on the forest moon of the planet Endor (led by Han Solo) with the help of the native Ewoks, rebel fighters flew into the unfinished station targeting its reactor core chamber and damaged the reactor core itself, which eventually explodes and destroys the station. It was destroyed by Wedge Antilles and Lando Calrissian (with Nien Nunb as his Millennium Falcon co-pilot), the former destroying a power regulator and the latter destroying the main reactor.[citation needed]