Using the Hubble Space Telescope, scientists have discovered a new moon in our solar system, orbiting a distant dwarf planet called Makemake. The tiny moon is estimated to be only about 100 miles across, and Makemake, the dwarf planet it orbits, is just 870 miles wide.
For comparison, the Earth’s moon is more than twice as big as Makemake, at 2159 miles in diameter. Like Pluto, Makemake is a small ice world located beyond Neptune and is considered to be a dwarf planet, not a planet proper. It is located so far from the Sun that it takes 310 Earth years for the dwarf planet to make one orbit. FULL REPORT