News

  1. Chemistry

    Scaffolding props up failing hearts

    Hydrogel treatment stimulates cell repair and blood vessel regrowth in pig experiments.

    By Rachel Ehrenberg
  2. Humans

    New fossils hint at ancestral split

    Jaw and face bones suggest two Homo species lived in East Africa nearly 2 million years ago.

    By Bruce Bower
  3. Health & Medicine

    Thinner isn’t always better in diabetes

    Normal-weight people who develop diabetes have higher mortality than people who are overweight or obese at the disease’s onset

    By Meghan Rosen
  4. Planetary Science

    Wheels down, Mars rover takes in the view

    After a safe landing, NASA’s Curiosity begins transmitting images back to Earth.