News

  1. Chemistry

    Skin is no barrier to BPA, study shows

    The new finding suggests handling store receipts could be a significant source of internal exposure to the hormone-mimicking chemical.

    By Janet Raloff
  2. Earth

    Arctic lake yields climate record

    A Siberian drilling project goes to great lengths to capture an ancient climate record in a 3.6 million-year-old crater.

    By Alexandra Witze
  3. Physics

    Entanglement loophole closed

    A long-distance experiment rejects a challenge to quantum physics.

    By Laura Sanders
  4. Tech

    Trading places

    As the pace of financial transactions accelerates, researchers look forward to a time when the only limiting factor is the speed of light.