Triton is the largest moon of Neptune. It’s also the only moon in the solar system that orbits its planet in the opposite direction of the planet’s rotation. Triton is one of the few moons in our solar system that is volcanically active
'Triton' (moon of Neptune) Equatorial surface feature. 2018
Global color mosaic of Triton, taken in 1989 by Voyager 2 during its flyby of the Neptune system. With a radius of mi), about smaller than Earth's moon, Triton is by far the largest satellite of Neptune.
This image from NASA's Voyager 2 of the south polar terrain of Triton, was taken on Aug. 1989 revealing about 50 dark plumes or 'wind streaks' on the icy surface. The plumes originate at very dark spots generally a few miles in diameter and some are m