News

  1. Planetary Science

    Protecting Earth: Gravitational tractor could lure asteroids off course

    Relying solely on the tug of gravity, a proposed spacecraft could divert an asteroid on a collision course with Earth.

    By Ron Cowen
  2. Physics

    Ghostly Electrons: Particles flit through atom-thin islands

    Electrical measurements of one-atom-thick slices of carbon reveal extraordinary electronic properties, including electrons that seem massless and move at blazing speeds.

    By Peter Weiss
  3. Archaeology

    From prison yard to holy ground

    Archaeological excavations at a prison near Megiddo, Israel, have unearthed the remains of what may be one of the region's oldest Christian churches.

    By Sid Perkins
  4. Animals

    Yikes! The Moon! Bat lunar phobia may come from slim pickings

    A study of creatures that fly around at night suggests that scarce food may account for why some bats avoid hunting under a full moon.