News

  1. Life

    Insulin levels wax and wane daily

    Modern life may clash with the hormone’s natural cycle, new mouse research suggests.

    By Tina Hesman Saey
  2. Space

    New home for runaway black hole

    Galactic merger and ejection may have sent a cosmic wanderer through deep space.

    By Andrew Grant
  3. Earth

    Intensive care linked to BPA exposure in newborns

    High levels of pollutant BPA occur in sickest babies, study finds.

    By Janet Raloff
  4. Life

    Bees learn the electric buzz of flowers

    Floral electric fields could join color and fragrance as cues to pollinators.

    By Susan Milius
  5. Life

    Chill turns monarchs north

    Temperature manipulation appears to solve mystery of what triggers migratory butterflies’ homeward trip.