Uncategorized

  1. Anthropology

    Why modern javelin throwers hurled Neandertal spears at hay bales

    A sporting event with replica weapons suggests that Neandertals’ spears may have been made for throwing, not just stabbing.

    By Bruce Bower
  2. Plants

    How light-farming chloroplasts morph into defensive warriors

    Researchers now know which protein triggers light-harvesting plant chloroplasts to turn into cell defenders when a pathogen attacks.

    By Jeremy Rehm
  3. Space

    It’s time to start taking the search for E.T. seriously, astronomers say

    Astronomers are hoping to make looking for alien technology an official science goal of NASA.

    By Lisa Grossman
  4. Health & Medicine

    Readers have questions about Parkinson’s disease, moth wings and more

    Readers had questions about Parkinson’s disease, the new definition of a kilogram’s mass, Saturn’s moon Dione and more.