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  1. Only showing results from science.nasa.gov

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  2. science.nasa.gov

    Aug 17, 2023The link between Neptune and solar activity is surprising to planetary scientists because Neptune is our solar system's farthest major planet and receives sunlight with about 0.1% of the intensity Earth receives. ... Massachusetts, who led the study when she was an undergraduate astronomy student at UC Berkeley. "This is extremely exciting and ...
    • Hubble's Neptune Anniversary Pictures

      Today, Neptune has arrived at the same location in space where it was discovered nearly 165 years ago. To commemorate the event, NASA's Hubble Space Telescope has taken these "anniversary pictures" of the blue-green giant planet. Neptune is the most distant major planet in our solar system. German astronomer Johann Galle discovered the planet on […]

  3. science.nasa.gov

    Dec 9, 2024Encountering Neptune in 1989, NASA's Voyager mission completed humankind's first close-up exploration of the four giant outer planets of our solar system. Collectively, since their launch in 1977, the twin Voyager 1 and Voyager 2 spacecraft discovered that Jupiter, Saturn, Uranus, and Neptune were far more complex than scientists had imagined. There was a lot […]
  4. science.nasa.gov

    For comparison, Neptune in our own solar system has the equivalent mass of 17 Earths. The results imply that cold Neptune-mass worlds are likely to be the most common types of planets beyond the so-called snow line, the point where water remained frozen during planetary formation.
  5. science.nasa.gov

    From its vantage point high above Earth's atmosphere, NASA's Hubble Space Telescope has completed this year's grand tour of the outer solar system - returning crisp images that complement current and past observations from interplanetary spacecraft. This is the realm of the giant planets - Jupiter, Saturn, Uranus, and Neptune - extending as far as […]
  6. science.nasa.gov

    In 1989, NASA's Voyager 2 zipped past Neptune—its final planetary target before speeding to the outer limits of the solar system. It was the first time a spacecraft had visited the remote world. As the craft zoomed by, it snapped pictures of two giant storms brewing in Neptune's southern hemisphere. Scientists dubbed the storms "The […]
  7. science.nasa.gov

    These images are part of a scrapbook of Hubble snapshots of Neptune and Uranus that track the weather patterns over time on these distant, cold planets. Just as meteorologists cannot predict the weather on Earth by studying a few snapshots, astronomers cannot track atmospheric trends on solar system planets without regularly repeated observations.
  8. science.nasa.gov

    The warm light we see here on our home planet is roughly 900 times as bright as sunlight on Neptune. The planet's rich blue color comes from methane in its atmosphere, which absorbs red wavelengths of light but allows blue ones to be reflected back into space.
  9. science.nasa.gov

    Today, Neptune has arrived at the same location in space where it was discovered nearly 165 years ago. To commemorate the event, NASA's Hubble Space Telescope has taken these "anniversary pictures" of the blue-green giant planet. Neptune is the most distant major planet in our solar system. German astronomer Johann Galle discovered the planet on […]
  10. science.nasa.gov

    Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm - once big enough to stretch across the Atlantic Ocean from Boston to Portugal - is shrinking out of existence as seen in pictures of Neptune taken by NASA's Hubble Space Telescope. Immense dark storms on Neptune […]
  11. science.nasa.gov

    These NASA Hubble Space Telescope views of the blue-green planet Neptune provide three snapshots of changing weather conditions. The images were taken in 1994 on October 10 (upper left), October 18 (upper right), and November 2 (lower center), when Neptune was 2.8 billion miles (4.5 billion kilometers) from Earth.Hubble is allowing astronomers to study Neptune's dynamic atmosphere with a level ...
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