News

  1. Anthropology

    Oldest known Homo sapiens fossils come from northern Africa, studies claim

    Moroccan fossils proposed as oldest known H. sapiens, from around 300,000 years ago.

    By Bruce Bower
  2. Astronomy

    Einstein’s light-bending by single far-off star detected

    A measurement so precise Einstein thought it couldn't be done has demonstrated his most famous theory on a star outside the solar system for the first time.

    By Lisa Grossman
  3. Life

    When it comes to the flu, the nose has a long memory

    Mice noses have specialty immune cells with long memories.

    By Tina Hesman Saey
  4. Health & Medicine

    When preventing HIV, bacteria in the vagina matter

    Vaginal bacteria affect how well microbicide gels used to prevent HIV work.