News

  1. Life

    Dissing a loaded label for some unicellular life

    Prominent biologist calls ‘prokaryote’ outdated term.

    By Tina Hesman Saey
  2. Earth

    Tallying emissions in ports and at sea

    Ships are major contributors to acid rain and ground-level ozone concentrations in some parts of the world.

    By Sid Perkins
  3. Space

    Ice cubes in space

    Planetary scientists have determined the composition and orbits of two moons at the fringes of the solar system, finding that the bodies were created when an impactor struck the dwarf planet that they now orbit.

    By Ron Cowen
  4. Health & Medicine

    How herpes re-rears its ugly head

    Researchers identify a key player in the reactivation of herpes simplex virus type 1.