Mars has two moons: [[Phobos]] and [[Deimos]] (which respectively mean "Fear and "Panic" in [[Greek language|Greek]]). Russian scientists in the 1950s posited that Phobos might be hollow, but these claims were discredited in the late 1960s. The orbit of Phobos is slowly shrinking, and it will impact Mars in several million years.
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Mars has two moons: [[Phobos]] and [[Deimos]] (which respectively mean "Fear and "Panic" in [[Greek language|Greek]]). Russian scientists in the 1950s posited that Phobos might be hollow, but these claims were discredited in the late 1960s.