ESA Science & Technology - Martian moons: Phobos
Phobos is one of two very small satellites of the planet Mars. It was discovered along with its smaller companion, Deimos, by Asaph Hall at the Naval Observatory in Washington DC in August 1877. The moons are named after the children of the Greek god Ares - who, like the Roman Mars, is the god of war. Deimos means 'terror' or 'panic' and Phobos means 'fear'. Phobos is one of two very small satellites of the planet Mars. It was discovered along with its smaller companion, Deimos, by Asaph Hall at the Naval Observatory in Washington DC in August 1877....