On May 12, 2016, when Mars was 50 million miles from Earth, the Hubble Space Telescope turned its incredibly sharp eye toward the Red Planet. The time-lapse animation above reveals what it saw.
That little white speck zinging around Mars is Phobos, a football-shaped moon just 16.5 miles by 13.5 miles by 11 miles. You’re seeing it in an animation consisting of 13 separate exposures by Hubble.
Phobos looks like it is speeding along at an unbelievably rapid clip. In reality, Hubble acquir