Uncategorized

  1. Astronomy

    Pulsar pas de deux

    Astronomers have for the first time discovered two pulsars orbiting each other, offering the chance for new precision tests of Einstein's theory of general relativity.

    By Ron Cowen

  2. Keeping abreast of serotonin’s roles

    Serotonin, a chemical typically associated with the brain, also controls milk production in mammary glands.

    By John Travis
  3. Tech

    Body Builders

    By growing stem cells on three- dimensional polymer scaffolds, tissue engineers hope to mimic natural tissue development and ultimately produce replacement body parts.

    By Alexandra Goho

  4. 19385

    I would guess that a rock measuring 1 kilometer across, landing near New Zealand 500 years ago, would have done much more than create a tsunami 300 to 500 feet high.