The moons of Mars may have been formed in an icy planetary collision

The origins of Mars’s moons Phobos and Deimos have long been an enigma, but they may have been formed when a comet-like icy object slammed into the Red Planet

​The origins of Mars’s moons Phobos and Deimos have long been an enigma, but they may have been formed when a comet-like icy object slammed into the Red Planet The origins of Mars’s moons Phobos and Deimos have long been an enigma, but they may have been formed when a comet-like icy object slammed into the Red Planet