News

  1. Health & Medicine

    Hot clock key to fruit fly’s global spread

    A temperature-sensitive switch in a fruit fly’s biological clock means some species can survive in a wide range of climates while others are stuck on the equator.

    By Tina Hesman Saey
  2. Space

    Lopsided universe demands different explanation

    Cosmologists analyzing an apparent asymmetry in the pattern of radiation reveal evidence for a new type of field in the early universe.

    By Ron Cowen
  3. Health & Medicine

    Sense for morphine has gender gap

    Female rats have fewer brain receptors that sense morphine, making the drug less effective. The work points to the need for more research on why medicine potency can vary among people.