News

  1. Cosmology

    Dustup emerges over gravitational waves discovery

    While cosmologists wait for data from Planck satellite, some worry that BICEP2 data actually come from our galaxy.

    By Christopher Crockett
  2. Life

    In a surprise find, placentas harbor bacteria

    Mouth bacteria make their way to the placenta. Some mixes may trigger premature birth.

    By Tina Hesman Saey
  3. Quantum Physics

    Quantum cryptography could shed test for hackers

    An added protection of a proposed quantum cryptography method makes eavesdropping nearly impossible.

    By Andrew Grant
  4. Life

    Genes gives clues to outcome of species interbreeding

    Genetics provides clues to why hybrid river fish formed a subspecies but insects formed a new species.