This Moon of Neptune Might Have Survived a Wrecking-Ball Event
Neptune’s moon system is bizarre. Nearly half of its 16 known moons orbit backward relative to the planet’s spin, and one of these stands out as particularly odd: Triton, a large, icy world that is about 1,680 miles across, slightly smaller than Earth’s moon. Elsewhere in the solar system, other large moons orbit forward, reflecting … Read more