Using a U.S. Navy telescope in 1877, Asaph Hall discovered the 2 moons of Mars & named them this
[DOC] [TLE] Today in science: A moon for Mars | Space | EarthSky [PAR] Aug 17, 2016 ... American astronomer Asaph Hall discovered Phobos, one of the two Martian 
moons, on this date in 1877.