Lost in Space was an American science-fiction series created by Irwin Allen that aired on CBS from 1965 to 1968, following the Robinson family's voyage aboard the Jupiter 2. Its music was composed by a young John Williams, then credited as Johnny Williams, who wrote two different themes during the show's run: the earlier, more stately alternate theme heard here, and the faster, more famous third-season march. The show became a cult classic through decades of reruns, a 1998 film and a Netflix reboot in 2018, and its themes remain shorthand for vintage space adventure among retro TV fans.