News
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Health & Medicine1 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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PhysicsA 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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ClimateExpanding 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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HumansBabies 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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Health & MedicineMucus 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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Health & MedicineAir 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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SpaceThe 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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PhysicsGravitational 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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LifeClimate 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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HumansAn 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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Planetary ScienceAstronomers 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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AgricultureBirds 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.