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  1. nasa.gov
    https://solarsystem.nasa.gov › sun-by-the-numbers

    The Sun By the Numbers - NASA Solar System Exploration

    Oct 21, 2025 · The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest bits of debris – …

  2. nasa.gov
    https://solarsystem.nasa.gov › system › downloadable_items
    [PDF]

    Voyage: A Solar - NASA Solar System Exploration

    If you know how big you want the largest size (LS) in the model to be, then the scale is the ratio of the true largest size (TLS, e.g., the distance from the Sun to Pluto) to the size in the model (LS):

  3. nasa.gov
    https://solarsystem.nasa.gov › planet-compare

    Planet Compare – NASA Solar System Exploration

    Oct 21, 2025 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.

  4. nasa.gov
    https://solarsystem.nasa.gov › solar-system › sun › in-depth.amp

    In Depth | Sun – NASA Solar System Exploration

    Without the Sun’s energy, life as we know it could not exist on our home planet. From our vantage point on Earth, the Sun may appear like an unchanging source of light and heat in the sky. But …

  5. nasa.gov
    https://solarsystem.nasa.gov

    RPS 3D Viewer - NASA Solar System Exploration

    Oct 21, 2025 · Featured Resources Beyond Our Solar System Poster - Version A Martian Moon Phobos The Sun Poster - Version A more resources › Page Updated: April 1, 2024

  6. nasa.gov
    https://solarsystem.nasa.gov › internal_resources
    [PDF]

    Kuiper Belt and Oort Cloud - NASA Solar System Exploration

    In March 2004, a team of astronomers announced the discovery of a planet-like transneptunian object orbiting the Sun at an extreme distance, in one of the coldest known regions of our solar …

  7. nasa.gov
    https://solarsystem.nasa.gov › mars-by-the-numbers

    Mars By the Numbers - NASA Solar System Exploration

    Oct 21, 2025 · Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots.

  8. nasa.gov
    https://solarsystem.nasa.gov › europa-by-the-numbers

    Europa By the Numbers – NASA Solar System Exploration

    Oct 21, 2025 · Europa is one of the largest of Jupiter’s more than 90 moons. It's the sixth-closest moon to the planet.

  9. nasa.gov
    https://solarsystem.nasa.gov › gltf_embed

    Sun 3D Model – NASA Solar System Exploration

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  10. nasa.gov
    https://solarsystem.nasa.gov › pluto-by-the-numbers

    Pluto By the Numbers - NASA Solar System Exploration

    Oct 21, 2025 · Pluto was once our solar system's ninth planet, but has been reclassified as a dwarf planet. It's located in the Kuiper Belt.