Earth's Place in the Universe

  1. Planets

    A shock to the solar system

    Scientists suspect a nearby exploding star ignited the formation of the sun and planets.

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  2. Science & Society

    Introducing the 2011 Nobel Prize winners

    Scientists in 2011 won for making unexpected discoveries about crystals, the human body and the universe.

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  3. Planets

    Double sunsets on a distant world

    Astronomers discover for the first time a planet circling two stars.

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  4. Space

    Fireworks near the Big Dipper

    Astronomers see a star as it explodes.

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  5. Planets

    Possible new saltwater stains on Mars

    Dark streaks that grow in spring, fade in winter may point to saltwater on the Red Planet.

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  6. Space

    How the outer sun gets so hot

    Magnetic waves boost the corona to extreme temperatures.

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  7. Space

    Not seeing sunspots

    Scientists predict a delay for the sun’s next cycle.

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  8. Space

    The dark side of the universe

    Most of the cosmos is invisible, but that doesn’t stop scientists from searching for it.

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  9. Space

    A curious cosmic explosion

    A bright blowup far, far away keeps astronomers guessing.

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  10. Physics

    Planetary paparazzo

    NASA satellite snaps historic photographs of Mercury.

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  11. Planets

    The growing planetary family

    At least 1,200 added to list of possible planets beyond the solar system.

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  12. Space

    Dark galaxy

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

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