50 Years Ago

  1. Archaeology

    Mystery still surrounds Neandertals

    Neandertals’ relationship to modern humans is still a matter of debate.

    By Tina Hesman Saey
  2. Astronomy

    Cosmic rays maintain their mystery

    Cosmic rays come from all over the universe, including some places we’re not so sure about.

    By Christopher Crockett
  3. Neuroscience

    1960s dog brain transplant was not followed by human studies

    A pioneering study to transplant a dog’s brain led to later work on a monkey, but ethical considerations and technical know-how have prevented further work.

    By Teresa Shipley Feldhausen
  4. Plants

    Early cyanobacteria fossils dug up in 1965

    In 1965, early photosynthetic plant fossils were discovered.