News

  1. vaping
    Health & Medicine

    1 in 4 U.S. high school seniors has vaped recently — up 4.5 percent from 2018

    A 2019 survey finds the number of high school and middle school students who report using e-cigarettes recently continues to grow.

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  2. KATRIN experiment
    Physics

    A new experiment slashes the maximum possible mass of tiny neutrinos

    The KATRIN experiment suggests that the tiny subatomic particles have masses a minuscule fraction of an electron’s.

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  3. ice core drilling
    Climate

    Expanding ice slabs are increasing Greenland’s contribution to sea level rise

    Since 2001, melting and refreezing have created vast ice layers near the surface that could drastically amp up meltwater runoff and sea level rise.

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  4. babies
    Humans

    Babies born by C-section have more potentially infectious bacteria in their guts

    Microbial mixes in babies’ guts differ depending on birth method.

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  5. hand sanitizer
    Health & Medicine

    Mucus prevents hand sanitizers from quickly killing the flu

    Flu viruses can hold out for minutes against ethanol when encased in wet mucus.

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  6. ultrasound baby
    Health & Medicine

    Air pollution can reach the placenta around a developing baby

    A small study of women living in Belgium found soot embedded in their placental tissue.

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  7. black hole illustration
    Space

    The Milky Way’s supermassive black hole reached record brightness this year

    The big black hole at the center of the galaxy recently flared twice as bright as ever seen before in near-infrared wavelengths.

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  8. black hole rings
    Physics

    Gravitational waves from a ringing black hole support the no-hair theorem

    A new study of gravitational waves from merging black holes agrees with the predictions of the general theory of relativity.

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  9. coral reef environment
    Life

    Climate change may be throwing coral sex out of sync

    Several widespread corals in the Red Sea are flubbing cues to spawn en masse.

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  10. St. Catherines Island
    Humans

    An island grave site hints at far-flung ties among ancient Americans

    Great Lakes and southeastern coastal hunter-gatherers had direct contact around 4,000 years ago, a study suggests.

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  11. ‘Oumuamua interstellar object
    Planetary Science

    Astronomers have spotted a second interstellar object

    Researchers will be able to watch what appears to be an interstellar comet swoop through the solar system for about a year.

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  12. white-crowned sparrow
    Agriculture

    Birds fed a common pesticide lost weight rapidly and had migration delays

    Scientists have previously implicated neonicotinoid pesticides in declining bee populations. Now a study suggests that songbirds are affected, too.

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