Uncategorized

  1. Math

    Unknotting knot theory

    New techniques are beginning to unravel the mysteries of knots, revealing a great mathematical superstructure in the process.

    By Julie Rehmeyer
  2. Space

    Hubble repair mission delayed yet again

    Even as the Hubble Space Telescope was able to snap an image after several weeks of idling, a mission to visit and upgrade Hubble suffered another delay.

    By Ron Cowen
  3. Animals

    Bat syndrome’s telltale white nose-mold new to science

    Newly cultured fungus named as a suspect in deadly white-nose syndrome

    By Susan Milius
  4. Humans

    Stone Age innovation out of Africa

    Researchers have dated two innovative Stone Age tool industries in southern Africa that may have helped spur human migrations out of Africa.