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,
IAU definition of planet IAU definition of planet The International Astronomical Union (IAU) defined in August 2006 that, in the Solar System, a planet is a celestial body which: Among other things, this definition caused Pluto to no longer be a planet, a change from how it had been widely considered until that point. A non-satellite body fulfilling only the first two of these criteria (such as Pluto) is classified as a "dwarf planet". According to the IAU, "planets and dwarf planets are two distinct classes of objects". A non-satellite body fulfilling only the first criterion is termed a "small Solar System body" (SSSB).