News

  1. Health & Medicine

    Early malnutrition may impair infants’ mix of gut microbes

    Babies’ gut microbiomes fail to fully recover even after fending off bouts with malnutrition.

    By Nathan Seppa
  2. Astronomy

    Rocky, overweight planet shakes up theories

    Kepler-10c is a rocky exoplanet 17 times as massive as Earth, and astronomers are puzzled as to how it formed.

    By Christopher Crockett
  3. Health & Medicine

    Health risks of e-cigarettes emerge

    Research uncovers a growing list of chemicals that end up in an e-cigarette user’s lungs, and one study finds that an e-cigarette’s vapors can increase the virulence of antibiotic-resistant bacteria.

    By Janet Raloff
  4. Chemistry

    Bacteria take plants to biofuel in one step

    Engineered bacterium singlehandedly dismantles tough switchgrass molecules, making sugars that it ferments to make ethanol.