The crescent of Neptune and Triton, captured by Voyager 2 on August 25, 1989, as the spacecraft headed toward interstellar space. (Credit: NASA-JPL)
Voyager visited finding storms, a cyclonic
Great Dark Spot. Your biggest moon, Triton,
is a captured dwarf planet. Carbon squeezed
out of methane mixes with water, creating
crystallized carbon. It’s raining diamonds on Neptune.
Neptune’s Great Dark Spot, a huge and surprisingly vigorous storm, imaged by Voyager 2 on August 23, 1989. (Credit: NASA-JPL/Justin Cowart)
