Charles Petit

All Stories by Charles Petit

  1. Physics

    Invisibility Uncloaked

  2. Astronomy

    The Star That Ate a Mars

    COVER STORY: Scientists probe debris trapped by white dwarfs to learn more about what faraway Earthlike planets are made of.

  3. Cold Panacea

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  4. Astronomy

    Ultramassive: as big as it gets

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  5. Space

    Black holes have limits

    A review of current evidence suggests an upper limit to a black hole's size.