Mars mainly phyllosilicates and other minerals known from Mars, point toward an origin of Phobos from material ejected by an impact on Mars that reaccreted in Martian orbit, similar to the prevailing theory for the origin of Earth's moon. Although the VNIR spectra of the moons of Mars resemble those of outer-belt asteroids, the thermal infrared spectra of Phobos are reported to be inconsistent with chondrites of any class. Mars may have moons smaller than in diameter, and a dust ring is predicted to exist between Phobos and Deimos. Dozens of crewless spacecraft, including orbiters, landers, and rovers, have been sent
Mars One in 2012 was Astrobotic Technology. On 12 March 2013, Paragon Space Development Corporation was contracted to develop concepts for life support and the Mars Surface Exploration Spacesuit System, and it includes the pressure suit and the Portable Life Support System (PLSS) that permit survival outside the habitat. The suggested supplier of the suits is ILC Dover. The study was stated to be finished late summer 2013; Mars One released the results of this (ECLSS portion only) study to the public in June 2015, but did not fund its research and development. In 2013, Mars One signed a contract with Paragon