Planets

  1. Planets

    An Icy Blob of Fluff

    Firing a projectile into a comet has exposed an icy dirtball.

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  2. Planets

    A Smashing Display

    A space probe slams into a comet and sends up a mighty cloud of dust.

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  3. Planets

    Cousin Earth

    Astronomers have found a solid, Earthlike planet just 15 light-years beyond the solar system.

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  4. Planets

    Chaos Among the Planets

    The screwball travels of four giant planets may have reshaped the early solar system.

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  5. Planets

    Solving a Sedna Mystery

    Astronomers are learning more about the most-remote object known in the solar system.

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  6. Planets

    Sounds of Titan

    A space probe touches down on an alien, but eerily familiar world and samples its music.

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  7. Planets

    Unveiling Titan

    A space probe that landed on Saturn's frigid moon Titan found a landscape that looks a lot like Earth.

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  8. Planets

    Icy Orbs at the Solar System’s Edge

    A ring at the solar system's outskirts appears to contain smaller objects than expected.

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  9. Planets

    A very distant planet says “cheese”

    A small red spot may be the first picture ever taken of a planet outside the solar system.

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  10. Planets

    Planet Hunters Nab Three More

    Astronomers have spotted three Neptune-size planets outside our solar system.

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  11. Planets

    Saturn’s New Moons

    The Cassini spacecraft has found evidence of lightning and two tiny moons orbiting the ringed planet.

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  12. Planets

    Ringing Saturn

    The Cassini spacecraft has arrived at Saturn to start exploring the planet and its rings and moons.

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