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  1. Neptune - Science@NASA

    Apr 29, 2025 · Dark, cold and whipped by supersonic winds, giant Neptune is the eighth and most distant major planet orbiting our Sun. More than 30 times as far from the Sun as is Earth, …

  2. Neptune Facts - NASA Science

    Apr 21, 2025 · Neptune is the eighth and most distant planet in our solar system. It was discovered in 1846. Neptune has 16 known moons.

  3. Neptune: Exploration - NASA Science

    Apr 21, 2025 · 1846: Using mathematical calculations, astronomers discover Neptune, increasing the number of known planets to eight. Neptune's largest moon, Triton, is found the same year.

  4. About the Planets - Science@NASA

    May 28, 2025 · Our solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: …

  5. New Webb Image Captures Clearest View of Neptune’s Rings in …

    Sep 21, 2022 · This image of the Neptune system, captured by Webb’s Near-Infrared Camera (NIRCam), reveals stunning views of the planet’s rings, which have not been seen with this …

  6. Neptune Moons - NASA Science

    Mar 12, 2025 · Neptune has 16 known moons. English merchant and astronomer William Lassell discovered the first and largest moon – Triton – on Oct. 10, 1846, just 17 days after a Berlin …

  7. Voyager at Neptune - NASA Science

    Apr 8, 2025 · In the summer of 1989, NASA's Voyager 2 became the first spacecraft to observe the planet Neptune up close, its final planetary target.

  8. Neptune - NASA Science

    Jun 14, 1995 · When the Voyager-2 spacecraft flew past the Neptune in 1989, its instruments revealed a surprising array of meteorological phenomena, including strong winds, bright, high …

  9. Neptune - NASA Science

    Jul 15, 2013 · This composite Hubble Space Telescope picture shows the location of a newly discovered moon, designated S/2004 N 1, orbiting the giant planet Neptune, nearly 3 billion …

  10. Hubble Space Telescope Observations of Neptune - Science@NASA

    Jun 14, 1995 · These images represent the clearest views of Neptune since the Voyager 2 flyby in August 1989. The observations are providing a wealth of new information about the structure, …