News

  1. Paleontology

    Secrets of Dung: Ancient poop yields nuclear DNA

    Researchers have extracted remnants of DNA from cells preserved in the desiccated dung of an extinct ground sloth.

    By Sid Perkins
  2. Astronomy

    Record Breaker: A planet from the early universe

    Astronomers have found the oldest and most distant planet known in the universe.

    By Ron Cowen
  3. Animals

    Killer sex, literally

    Videotapes of yellow garden spiders show that if a female doesn't murder her mate, he'll expire during sex anyway.

    By Susan Milius
  4. Tech

    Giving solar cells the rough treatment

    A new solar cell design that traps photons in the crevices of a bumpy surface uses low-cost materials and may make these cells more commercially appealing.