What comet pushed the members of the cult Heaven's Gate to commit mass suicide in 1997?
Heaven's Gate was an American UFO religious millenarian cult based in San Diego, California, founded in 1974 and led by Marshall Applewhite and Bonnie Nettles. In March 1997, 39 of their members committed mass suicide with the intention of teleporting to a spaceship they believed was flying behind the Comet Hale–Bopp.