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Neptune, third most massive planet in the solar system and the eighth and outermost planet from the Sun. Neptune has 14 moons, only two of which were discovered before Voyager 2’s visit in 1989, and a system of rings, which were unconfirmed before Voyager. More @Wikipedia
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- 10 Need-to-Know Things About Neptune - NASA Solar System ExplorationNeptune orbits our Sun, a star, and is the eighth planet from the Sun at a distance of about 2.8 billion miles (4.5 billion kilometers).
- In Depth | Triton – NASA Solar System ExplorationTriton 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.
- In Depth | Neptune – NASA Solar System ExplorationDark, cold, and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye.
- Planet Compare – NASA Solar System ExplorationPlanet Compare. NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
- Directory | Solar System Ambassadors - NASA Solar System ExplorationCaleigh MacPherson is an engineer from New Hampshire who previously worked on the NASA Magnetospheric Multiscale satellite mission. She was the team lead of the award-winning University of New Hampshire LunaCats, whose mission was to design and build a lunar mining robot for NASA's Annual Robotics Mining Competition.
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