The 1980s were an unforgettably unique era. The music, the fashion, the sports rivalries, the movies and television shows all defined the decade. However, for every good thing the 80s brought, there were twice as many unfortunate disasters that came too. On Jan. 28, 1986, the Challenger space shuttle exploded only 73 seconds after its launch. On board were astronauts Ellison Onizuka, Gregory Jarvis, Judith Resnik, Michael Smith, Francis (Dick) Scobee, Ronald McNair and most notably, school teacher Christa McAuliffe. They were all killed when the shuttle broke apart in midair over the Atlantic Ocean, turning a historic event into a national nightmare.