News

  1. Life

    Mitochondria behind life span extension

    Study in flies suggests low-protein diet works through power-producing organelles.

    By Laura Sanders
  2. Humans

    Partial skeleton gives ancient hominids a new look

    African hominid fossils, including a partial skeleton, reveal a surprising mix of features suitable for upright walking and tree climbing 4.4 million years ago.

    By Bruce Bower
  3. Health & Medicine

    Excreted Tamiflu found in rivers

    A Japanese study finds that excreted Tamiflu ends up in river water, raising concerns that birds hosting a flu virus will develop drug-resistant strains.

    By Janet Raloff
  4. Astronomy

    MESSENGER captures new images of Mercury during a third passage

    MESSENGER flew past Mercury for a third time on September 29.