News

  1. Astronomy

    Puzzle on the Edge: The moon that isn’t there

    Contrary to predictions, Sedna, the most distant object known in the solar system, does not appear to have a moon.

    By Ron Cowen
  2. Materials Science

    Crafty Carriers: Armoring vesicles for more precise and reliable drug delivery

    Materials scientists are designing tough, microscopic drug-delivery vesicles that could reach their targets intact and release their cargoes on cue.

    By Alexandra Goho
  3. Health & Medicine

    Zapping Wayward Cells: Therapy sheds light on transplant complication

    Ultraviolet light can curb graft-versus-host disease, a common complication of bone marrow transplants, a study of mice shows.

    By Nathan Seppa
  4. Math

    Primal Progress: Pattern hunters spy order among prime numbers

    The population of prime numbers includes an infinite collection of arithmetic progressions.