Uncategorized

  1. Paleontology

    Small ancestor of giant sauropods unearthed

    Fossils suggest that the bipedal dinosaur occasionally walked on all fours and could open its mouth wide to gather foliage.

    By Sid Perkins
  2. Health & Medicine

    The childhood nerve cancer neuroblastoma shows weakness

    A compound that unshackles a tumor-suppressing protein called p53 can slow the growth of the malignancy in mice, a new study finds.

    By Nathan Seppa
  3. Space

    The Milky Way, aglow with activity

    Combining infrared and X-ray images from three orbiting observatories, NASA has unveiled a never-before-seen composite portrait of the Milky Way’s bustling center.

    By Ron Cowen
  4. Earth

    Asteroid impact could have stirred the ocean

    Model offers one explanation for sudden change in deep-ocean chemistry almost 2 billion years ago.