Space

  1. Planets

    Cousin Earth

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

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  2. Planets

    Chaos Among the Planets

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

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  3. Space

    Killers from Outer Space

    A newly revised scale rates the risk that an asteroid may crash into Earth and wipe out life as we know it.

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  4. Planets

    Solving a Sedna Mystery

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

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  5. Space

    Return to Space

    NASA is readying the space shuttle Discovery for its first launch in more than 2 years.

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  6. Space

    Super star cluster in the neighborhood

    Astronomers have spotted an amazingly compact grouping of stars in the Milky Way.

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  7. Space

    No Fat Stars

    Stars in the Milky Way can weigh no more than 150 times the sun's mass.

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  8. Space

    Dark galaxy

    Astronomers have spied a massive galaxy that appears to contain no stars.

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  9. Planets

    Sounds of Titan

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

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  10. Space

    Black hole journey

    Research on weird, invisible objects called black holes might help explain how the universe began.

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  11. 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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  12. 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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