News

  1. Chemistry

    Prions are common, at least in yeast

    A new study of shape-shifting proteins in baker’s yeast reveals that prions are common and may help organisms survive in changing conditions.

    By Tina Hesman Saey
  2. Health & Medicine

    HPV screen beats Pap smear

    A test for human papillomavirus outperforms the standard Pap smear in catching precancerous cervical lesions, a study of women age 30 and over shows.

    By Nathan Seppa
  3. Space

    Heavyweight galaxies in the young universe

    New observations of full-grown galaxies in the young universe may force astrophysicists to revise their leading theory of galaxy formation, at least as it applies to regions where galaxies congregate into clusters.