Planetary Science

More Stories in Planetary Science

  1. Parker Solar Probe illustration
    Space

    NASA’s Parker probe reveals the sun’s rogue plasma waves and magnetic islands

    Scientists have analyzed the Parker probe’s first data, giving a peek at what’s to come as the craft moves closer to the sun over the next few years.

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  2. Space rocks hitting Earth illustration
    Planetary Science

    Ribose, a sugar needed for life, has been detected in meteorites

    Samples of rocks that fell to Earth contain a key molecular ingredient of RNA, part of life’s genetic machinery.

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  3. Arrokoth
    Space

    NASA gave Ultima Thule a new official name

    The distant world briefly visited by New Horizons is now called Arrokoth, a Powhatan word that means “sky.”

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  4. Voyager 1 and 2
    Space

    Voyager 2 reveals the dynamic, complex nature of the solar system’s edge

    With two spacecraft outside the sun’s magnetic bubble, researchers get a new look at the boundary between the sun and its galactic environment.

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  5. solar system illustration
    Space

    Rules guarding other planets from contamination may be too strict

    Voluntary international guidelines for visiting the moon, Mars and other places — and for bringing stuff back to Earth — are overly cautious, scientists say.

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  6. Space

    The solar system may have a new smallest dwarf planet: Hygiea

    New images reveal Hygiea is round, a final criterion for promoting the wee world from asteroid to dwarf planet status.

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  7. Saturn
    Planetary Science

    Astronomers have spotted a new type of storm on Saturn

    In 2018, telescopes on Earth and in space identified a never-before-seen kind of storm activity on the ringed planet.

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  8. 2I/Borisov
    Space

    How the second known interstellar visitor makes ‘Oumuamua seem even odder

    With its gaseous halo and tail, the second discovered interstellar object, 2I/Borisov, looks basically like your run-of-the-mill solar system comet.

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  9. Exoplanet K2 18b
    Space

    Why just being in the habitable zone doesn’t make exoplanets livable

    A reignited debate over whether a new planet is habitable highlights the difficult science of seeking alien life.

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