Astronomy

  1. Astronomy

    Kepler’s surprise: Planet hunter also found supernovas

    NASA's now-defunct Kepler space telescope captured five stellar explosions as they happened.

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  2. Science & Society

    Tracking fireballs for science

    Watching a meteor race across the night sky is a romantic experience. And now it can be a scientific one as well.

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  3. Astronomy

    Galaxies’ missing mass may hide in gas clouds

    Vast reservoirs of previously undetected gas could account for much of galaxies’ matter, solving a cosmic mystery.

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  4. Life

    Feedback

    Readers respond to microbe counts, engineered organs and how to map the universe.

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  5. Astronomy

    “Black holes” in space

    Science News Letter was the first publication to use the term in print in 1964.

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  6. Astronomy

    Enormous cosmic lens magnifies supernova

    Galaxy warps light of distant exploding star, greatly increasing its brightness.

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  7. Astronomy

    Earth-mass planet resembles a mini-Neptune

    KOI-314c, an exoplanet 200 light-years away, is about 60 percent larger than Earth but made mostly of gas.

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  8. Astronomy

    Supernova is a dust factory

    Grains of matter spewed by stellar explosion offer clues to early star formation.

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  9. Astronomy

    Unusual three-star system promises new test of gravity

    A unique stellar threesome could help astronomers test the leading theory of gravity to unprecedented precision.

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  10. Astronomy

    Relic of early universe found nearby

    A galaxy little changed since the dawn of the universe shows up in our celestial neighborhood.

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  11. Astronomy

    Signs of cloudy skies seen in two exoplanet atmospheres

    Exoplanets GJ 436b and GJ 1214b have signatures of clouds in their atmospheres, but the skies are like nothing seen in the solar system.

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  12. Cosmology

    Best maps of the universe, bugs and all

    Maps from the European Space Agency’s Planck satellite reveal the cosmos in a range of microwave and infrared frequencies.

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