ocr: to O a - MARS: GENERAL INFORMATION MAMSS SATELLITES But no truly hollow body exists in nature. So, perhaps Phobos was an artificial satellite, launched by Martians? Russian astrophysicist Joseph Shkovsky jokingly proposed this far-fetched hypothesis in 1960. The specialists then recalculated Phobos's orbit: it seems Sharpless may have overestumated the satellite's acceleration, but Phobos is indeed orbiting faster and faster around the Red Planet. The Mariner 9: space probe at last gave us a close-up look at Phobos. Iti is not hollow, but is an trregularly-shaped non-spherical) asteroid, whose ...
