Astronomy

  1. Milky way star cluster
    Space

    Young stars have been found in an old part of our galaxy

    A newly discovered star cluster in the Milky Way’s halo seems to have been deposited there by gas torn off of two satellite galaxies.

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  2. ionized hydrogen bubbles
    Space

    Bubble-blowing galaxies could help solve a cosmic mystery

    Three galaxies ionizing hydrogen 680 million years after the Big Bang show a potential step in the ionization of nearly all hydrogen in the cosmos.

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  3. FRB galaxy
    Space

    The home galaxy of a second repeating fast radio burst is a puzzle

    The second galaxy known to host brief, brilliant flashes of radio waves known as a recurrent fast radio burst looks nothing like the first.

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  4. Astronomy

    LIGO detects its second neutron star collision, but gains few clues

    Gravitational waves have once again heralded a smashup between neutron stars, but this time with no flash of light to help guide understanding.

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  5. pulsar map
    Space

    The first glimpses of a pulsar’s surface hint at complex magnetism

    Maps of a rapidly spinning neutron star could eventually help researchers figure out how matter behaves at extraordinarily high densities.

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  6. Southern Hemisphere
    Space

    A new map reveals radio waves from tens of thousands of galaxies

    Radio waves from about 17,000 galaxies show that the peak of star formation, about 10 billion years ago, might have been more productive than predicted.

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  7. Hayabusa2 spacecraft shadow
    Space

    How 2019’s space missions explored distant worlds

    Planets and asteroids and Arrokoth, oh my. Space probes had a busy year.

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  8. supernova
    Space

    50 years ago, scientists didn’t know where heavy elements came from

    Five decades ago, scientists suspected ordinary supernovas created heavy elements. Now we know they don’t, but merging neutron stars do.

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  9. CHEOPS satellite illustration
    Space

    A new mission to investigate exoplanets has rocketed into space

    The European Space Agency’s CHEOPS satellite has launched on a mission to gather intel on previously discovered planets outside of the solar system.

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  10. Neutron star merger illustration
    Science & Society

    These science claims from 2019 could be big deals — if true

    Some of this year’s most tantalizing scientific finds aren’t yet ready for a “best of” list.

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  11. black hole M87 first image
    Space

    2019 brought us the first image of a black hole. A movie may be next

    The Event Horizon Telescope team is gearing up for more black hole discoveries.

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  12. Geminid meteor shower
    Space

    NASA’s Parker probe has spotted the Geminid meteor showers’ source

    For the first time, we’ve spotted the trail of space debris responsible for the Geminid meteor shower.

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