Phobos (moon) break up when it reaches approximately 2.1 Mars radii. When Phobos is eventually torn apart by tidal forces, a fraction of the debris will likely form a planetary ring around Mars, which may last from one million to one hundred million years. The origin of the Martian moons is still controversial. Phobos and Deimos both have much in common with carbonaceous C-type asteroids, with spectra, albedo, and density very similar to those of C- or D-type asteroids. Based on their similarity, one hypothesis is that both moons may be captured main-belt asteroids. Both moons have very circular orbits which lie
Leather Goddesses of Phobos 2: Gas Pump Girls Meet the Pulsating Inconvenience from Planet X! had no such settings. The box did, however, feature "warnings" such as "Mature Attitudes Expressed". In the original "Leather Goddesses of Phobos", the titular female aliens suffered a humiliating defeat in 1936 at the hands of an Earthling from Ohio. Now it is 1958, and astronomers have recently discovered "Planet X", the tenth planet in our solar system. The desert town of Atom City, Nevada does not contain much besides a military base, nuclear power plant and gas station. But one night the sleepy town witnesses a spaceship that crash-lands with a single survivor: Barth, the "Pulsating Inconvenience" from the