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  1. Triton (moon) - Wikipedia

    Triton is the largest natural satellite of the planet Neptune. It is the only moon of Neptune massive enough to be rounded under its own gravity and hosts a thin, hazy atmosphere.

  2. Triton - NASA Science

    Nov 3, 2024 · Triton is the largest of Neptune's 13 moons. It is unusual because it is the only large moon in our solar system that orbits in the opposite direction of its planet's rotation―a retrograde orbit. …

  3. Triton | Facts & Composition | Britannica

    Nov 27, 2025 · Triton, largest of Neptune ’s moons, whose unusual orbital characteristics suggest that it formed elsewhere in the solar system and was later captured by Neptune. It was discovered by the …

  4. Triton, Neptune's largest moon - The Planetary Society

    Triton is the largest of Neptune’s 14 known moons. The icy world is likely a Kuiper Belt Object that was captured by Neptune’s gravity. Triton may have a liquid water ocean beneath its surface, but a new …

  5. The moon Triton - History, orbit, atmosphere, surface, structure ...

    Find out information about the moon Triton, the largest moon of the planet Neptune. Learn about its history, its odd orbit, the impact of Neptune's pull, its surface, its structure.

  6. Triton: Neptune’s Enigmatic Moon ★ Starvium

    Triton, the largest moon of Neptune, is one of the most fascinating objects in our solar system. Discovered in 1846 by British astronomer William Lassell, just 17 days after Neptune itself was …

  7. Triton • Atlas of Space

    The largest of Neptune's moons, Triton is a unique captured Kuiper Belt object that orbits backwards around its planet and has active nitrogen geysers erupting from its frigid surface.

  8. In Depth | TritonNASA Solar System Exploration

    Triton is the largest of Neptune's 13 moons. It is unusual because it is the only large moon in our solar system that orbits in the opposite direction of its planet's rotation―a retrograde orbit. Scientists think …

  9. Triton: Cryovolcano Moon of Neptune | Go Astronomy

    Triton is the largest moon of planet Neptune and the only large moon in the solar system with a retrograde orbit in the opposite direction from Neptune's rotation. Triton is thought to have been a …

  10. Triton (Moon) Facts

    Triton is Neptune’s largest moon and is the only large moon in the solar system to orbit in the opposite direction to its planet’s rotation, this is known as a retrograde orbit.