News

  1. Life

    Head lice hitched a ride on humans to the Americas at least twice

    The genes of head lice record the story of their human hosts’ global voyages.

    By Jake Buehler
  2. Physics

    A controversial room-temperature superconductor result has now been retracted 

    The retraction by Nature is the third for beleaguered physicist Ranga Dias, who still stands by his claim of a room-temperature superconductor.

    By Emily Conover
  3. Animals

    The mysterious deaths of dozens of Zimbabwe’s elephants has been solved

    A bacterium never before identified in elephants or implicated in deadly internal hemorrhaging killed Zimbabwe elephants in 2020, genetic tests show.

    By Tawanda Karombo
  4. Health & Medicine

    The CDC is expanding its disease surveillance of international travelers

    Passengers at four major U.S.