News

  1. Planetary Science

    Cassini snaps icy moon Dione

    Saturn's small moon Dione has a heavily-cratered, fractured surface.

    By Ron Cowen
  2. 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
  3. 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
  4. 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.