Planets

  1. Planets

    A Puffy Planetary Puzzle

    Astronomers spot an unusual object orbiting a nearby star.

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  2. Planets

    Pluto and the plutons

    A new definition would raise the number of planets in the solar system from 9 to 12.

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  3. Planets

    Lakes on Titan

    Saturn's giant moon Titan appears to be sprinkled with lakes of liquid methane.

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  4. Planets

    The Way a Comet Crumbles

    Astronomers are getting a close look at a comet that's falling apart as it nears the sun.

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  5. Planets

    Xena’s Mysterious Sparkle

    Orbiting beyond Pluto, the recently discovered 10th planet reflects a lot of light.

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  6. Planets

    Saturn’s Strangely Warm Moon

    Saturn's mysterious moon Enceladus may have liquid water close enough to its surface to produce giant geysers.

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  7. Planets

    Jupiter’s Second Red Spot

    Several huge storms have merged to give Jupiter a second red spot.

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  8. Planets

    Saturn’s rings created by collision

    A shattered moon may have produced Saturn's dazzling rings.

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  9. Planets

    Fiery Dust from an Icy Comet

    Dust samples from a comet contain minerals that form only at high temperatures.

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  10. Planets

    Storm on Saturn

    A spacecraft photographed the most powerful storm ever seen on Saturn.

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  11. Planets

    Sizing up Pluto’s moon

    Pluto's rocky moon Charon appears to lack an atmosphere.

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  12. Planets

    Evidence of a Wet Mars

    An orbiter provides new details about when and where liquid water existed on Mars.

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