ocr: J - n - MARS: GENERAL INFORMATION AMSS SATELLITES The origin of Mars's satellites remains a mystery. They are too: small to have been produced by the simple aggregation of stellar dust during the formation of the solar: system. Could they be asteroids captured by Mars's gravitational field? This is hardly likely-given Mars's low mass, its gravitational field is too weak. One day a manned mission to Phobos may make it possible for us to answer these questions and learn more: about the formation of the solar system. In any event, when astronauts. journey for the first time from the Earth tol Mar ...