Vulcan a planet that never existed astronomy space science 45:15 Vulcan | The Planet That Didn't Exist 23:16 Vulcan: The Ninth Planet That Never Existed 03:32 Vulcan: the planet that never was 01:16 Vulcan: The planet that never existed 08:11 The Famous Planet that Never Existed Vulcan 09:00 How Mercury Fooled Us Into Believing There Was Planet Vulcan 08:08 The Planet that Never Existed. 01:33 The Myth of Planet Vulcan 03:10 The Search For Vulcan 12:40 The Planet Closer to the Sun than Mercury | Vulcan 01:17 Vulcan (Hypothetical Planet) More results