Uncategorized

  1. Humans

    Alcohol-producing bacteria could cause liver disease in some people

    A majority of patients with nonalcoholic fatty liver disease also had gut bacteria churning out medium to high levels of ethanol.

    By
  2. Humans

    Ancient DNA reveals the first glimpse of what a Denisovan may have looked like

    A controversial technique reconstructs a teenage Denisovan’s physical appearance from genetics.

    By
  3. Health & Medicine

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

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

    By
  4. 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.

    By
  5. 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.

    By
  6. Humans

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

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

    By
  7. 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.

    By
  8. Astronomy

    How an astrophysicist chased a star from the Halo games to real life

    Julián Alvarado Gómez has devoted his career to a star called Iota Horologii. His former life as a Halo video gamer helps fuel that devotion.

    By
  9. Finding the stories and growing the next crop of science journalists

    Editor in Chief Nancy Shute discusses how an intern wrote about 3-D printed guns.

    By
  10. Readers contemplate climate change and neural connections

    Readers had questions about neurons and carbon-absorbing algal blooms.

    By
  11. 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.

    By
  12. 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.

    By