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A 3D model of Triton, a moon of Neptune. Triton has a diameter of 1,680 miles (2,700 kilometers). Spacecraft images show the moon has a sparsely cratered surface with smooth volcanic plains, mounds and round pits formed by icy lava flows. Triton consists of a crust of frozen nitrogen over an icy mantle believed to cover a core of rock and metal.
- In Depth | Triton – NASA Solar System Exploration
Overview. Triton is the largest of Neptune's 13 moons. It is...
- The Exploration of Neptune and Triton - NASA Solar System ...
Neptune and its captured moon Triton are unexplored with...
- Proposed NASA Mission Would Visit Neptune’s Curious Moon Triton
The oddities of Triton could fill an almanac: As Neptune...
- In Depth | Triton – NASA Solar System Exploration
- Discovery
- Overview
- How Triton Got Its Name
Triton was discovered on Oct. 10, 1846 by British astronomer William Lassell, just 17 days after Neptune itself was discovered.
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 Triton is a Kuiper Belt Object captured by Neptune's gravity millions of years ago. It shares many similarities with Pluto, the best know...
Triton is named after the son of Poseidon (the Greek god comparable to the Roman Neptune). Until the discovery of the second moon Nereid in 1949, Triton was commonly known as simply "the satellite of Neptune."
Nov 12, 2024 · Global color mosaic of Neptune's largest moon, Triton, taken by NASA's Voyager 2 in 1989. Credit: NASA/JPL-Caltech/USGS ... An ambitious mission to Neptune could study both the planet and Triton ...
Feb 13, 2020 · Trident would explore Triton, a unique and highly active icy moon of Neptune, to understand pathways to habitable worlds at tremendous distances from the Sun. NASA's Voyager 2 mission showed that Triton has active resurfacing - generating the second-youngest surface in the solar system - with the potential for erupting plumes and an atmosphere.
- Jet Propulsion Laboratory
Feb 17, 2022 · Proposals for missions to study the ice giant planet Neptune and its mysterious moon Triton have been on NASA’s to-do list for over a decade, but nothing has happened until now. A mission to explore one of the ice giants — Uranus or Neptune — was one of the three priorities set out by the last Decadal Survey in 2010, along with Jupiter’s moon Europa and a sample return mission to Mars.
Oct 24, 2024 · Neptune and its captured moon Triton are unexplored with modern spacecraft instrumentation. Observations of these objects are urgently needed to address planet formation and the evolution of ice giant planets, icy satellites, Kuiper Belt Objects, and the solar system itself. Please let us know if you find any discrepancies or inaccuracies.
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Jun 16, 2020 · The oddities of Triton could fill an almanac: As Neptune rotates, Triton orbits in the opposite direction. No other large moon in the solar system does that. And Triton’s orbit lies at an extreme tilt, offset from Neptune’s equator by 23 degrees. About three-quarters the diameter of our own Moon, Triton isn’t where it used to be, either.