Mr. Martian Mr. Martian is also exceptionally strong, and gifted with the power of teleportation. He uses a Distorter Beam to alter his appearance, and a Multi-Ray to enlarge or shrink his opponents. However, he cannot breathe Earth's atmosphere, and must always wear a protective helmet. Planet Mars was once a paradise, until a nuclear war made the surface uninhabitable. The Martians moved underground, only coming to the surface to use the "Transit Tubes" (which Earth scientists mistook for Martian canals). Under the surface, Martian technology flourished, and continues to do so underneath the planet. Besides being a pastiche of Martian Manhunter,
Fictional planets of the Solar System while yet others are purely fictional and were never intended as serious hypotheses about the structure of the Solar System. Vulcan was a hypothetical planet supposed to revolve around the Sun inside the orbit of Mercury, invoked to explain certain irregularities in Mercury's orbit. The planet was proposed as a hypothesis in 1859, and abandoned not later than 1915. The name "Vulcan" has been used for various other fictional planets, in and out of the Solar System, that do not correspond to the hypothetical planet Vulcan. The planet Vulcan in the "Star Trek" franchise, for instance, is specified as orbiting