News

  1. Planetary Science

    Martian Landscaping: Spacecraft eyes evidence of a frozen sea

    After analyzing images taken by the orbiting Mars Express spacecraft, researchers reported that a flat region near the Red Planet's equator holds a frozen ocean that was once the size of the North Sea.

    By Ron Cowen
  2. Animals

    Shortcut to Big Heart: Pythons build cardiac muscle in record time

    A Burmese python can boost its cardiac fitness—by bulking up its heart muscle 40 percent in two days—just by eating.

    By Susan Milius
  3. Astronomy

    Nursery Pictures: Astronomers glimpse primordial clustering

    Astronomers have found the earliest traces of galaxy clustering, from a period just 1 billion years after the birth of the universe.