Astronomy

  1. Space

    The closest black hole to Earth may have been spotted 1,000 light-years away

    What appears to be the closest black hole to the solar system shares orbits with two massive stars, a new study finds.

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  2. Astronomy

    The sun is less magnetically active than similar stars, and we don’t know why

    Why our star seems so different from its stellar kin is a mystery.

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  3. Harlow Shapley, Heber Curtis
    Astronomy

    A century ago, astronomy’s Great Debate foreshadowed today’s view of the universe

    The argument between Harlow Shapley and Heber Curtis 100 years ago was ultimately settled by Edwin Hubble.

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  4. Astronomy

    High-speed gas collisions prevent star birth in galaxies’ bars

    The spiral galaxy NGC 1300 makes few if any stars in its bright bar. Simulations suggest gas clouds colliding at high speed stunt star formation.

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  5. illustration of unequal-sized black holes
    Physics

    Gravitational waves have revealed the first unevenly sized black hole pair

    For the first time, LIGO and Virgo scientists spotted gravitational waves produced when one big black hole merged with a smaller one.

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  6. supernova illustration
    Space

    A weird stellar explosion may have caused the brightest supernova yet seen

    Astronomers may have spotted the first known example of a rare “pulsational pair-instability” supernova.

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  7. close-up of the plasma filaments on the sun
    Astronomy

    New images of the sun reveal superfine threads of glowing plasma

    Snapshots from NASA’s High-Resolution Coronal Imager show thin filaments of plasma not seen before in the sun’s outer atmosphere.

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  8. Star orbit around black hole
    Physics

    A star orbiting the Milky Way’s giant black hole confirms Einstein was right

    An oddity previously seen in Mercury’s orbit has been spotted in a star circling the supermassive black hole at the Milky Way’s center.

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  9. Astronomy

    ‘Oumuamua might be a shard of a broken planet

    A new origin story for the solar system’s first known interstellar visitor suggests it may have been part of a world that got shredded by its star.

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  10. EHT black hole image
    Physics

    A year after the first black hole image, the EHT has been stymied by the coronavirus

    With this year’s observing run canceled due to the coronavirus, the Event Horizon Telescope team is analyzing data from 2017 and 2018.

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  11. Telescope and night sky
    Space

    New search methods are ramping up the hunt for alien intelligence

    Six decades of radio silence hasn’t stopped scientists searching for intelligent life beyond Earth. In fact, new technologies are boosting efforts.

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  12. planet burning up near star illustration
    Space

    Red giant stars that eat planets might shine less brightly

    Some stars may shine less brightly after ingesting a planet. That finding, if confirmed, could have implications for calculating cosmic distances.

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