Orest Strzalkowski
Orest Strzalkowski voted up Tim Cook's answer

Mars has two small moons, Phobos and Deimos, named after the Greek gods of horror and terror. Both were discovered in 1877 by the American astronomer Asaph Hall (1829 - 1907). As so often with astronomy, the more these moons are studied, the more questions are raised.

Phobos (pictured above) is around 6 miles … Read more