News

  1. Quantum Physics

    Key Einstein principle survives quantum test

    Particles in quantum superposition adhere to the equivalence principle in atomic test.

    By Emily Conover
  2. Genetics

    Ancient DNA bucks tale of how the horse was tamed

    DNA from ancient horses reveals early domestication involved plenty of stallions.

    By Tina Hesman Saey
  3. Health & Medicine

    Zika hides out in body’s hard-to-reach spots

    Zika virus sticks around in the central nervous system and lymph nodes of monkeys.

    By Laurel Hamers
  4. Archaeology

    First settlers reached Americas 130,000 years ago, study claims

    Mastodon site suggests first Americans arrived unexpectedly early.

    By Bruce Bower
  5. Environment

    ‘Fossil’ groundwater is not immune to modern-day pollution

    Ancient groundwater that is thousands of years old is still susceptible to modern pollution, new research suggests.