News

  1. Health & Medicine

    UV Blocker: Lotion yields protective tan in fair-skinned mice

    A lotion that stimulates production of the skin pigment melanin induces a deep tan in specially bred laboratory mice.

    By Nathan Seppa
  2. Astronomy

    Enigmatic Eruptions: Gamma-ray bursts lack supernova fireworks

    The most powerful bursts in the universe may have gotten more mysterious.

    By Ron Cowen
  3. Health & Medicine

    Graveyard Shift: Prostate cancer linked to rotating work schedule

    Men who alternate between daytime and nighttime shifts on their jobs have triple the normal rate of prostate cancer, according to a Japanese nationwide study.

    By Ben Harder
  4. Anthropology

    Evolution’s Child: Fossil puts youthful twist on Lucy’s kind

    Researchers have announced the discovery of the oldest and most complete fossil child in our evolutionary family yet found.