Space

  1. Moon
    Space

    How brightly the moon glows is a mystery, but maybe not for long

    The best estimates for the moon’s brightness are still somewhat unsure. A new experiment is trying to fix that.

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  2. black hole
    Space

    A newfound black hole in the Milky Way is weirdly heavy

    A dark mass about 68 times as massive as the sun is locked in orbit with a star in our galaxy. Theory says that such black holes shouldn’t get so big.

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  3. NGC 5477
    Astronomy

    19 more galaxies mysteriously missing dark matter have been found

    The finding reveals a population of dwarf galaxies that defy common wisdom about how these star systems form and evolve.

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  4. 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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  5. Exploding star illustration
    Space

    How two gamma-ray bursts created record-breaking high-energy photons

    Light packing up to 1 trillion electron volts of energy bolsters a theory for how these cosmic explosions produce such high-energy radiation.

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  6. solar spicules
    Space

    Realigning magnetic fields may drive the sun’s spiky plasma tendrils

    Solar spicules emerge near counterpointing magnetic fields, hinting that self-adjusting magnetism creates these filaments, which may heat the corona.

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  7. 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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  8. Sunburst Arc galaxy
    Space

    Light leaking from a distant galaxy hints at a cosmic makeover’s origins

    Ultraviolet light slips through a hole in a distant galaxy’s gas. Older galaxies might have used the trick to ionize most of the universe’s hydrogen.

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  9. 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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  10. 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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  11. 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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  12. Space

    Strontium is the first heavy element detected from a neutron star merger

    The discovery of strontium created inside a neutron star smashup gives the clearest picture yet of what goes on inside this chaotic environment.

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