News

  1. Planetary Science

    Odyssey’s First Look: Craft spies signs of ice at the Martian south pole

    Astronomers have for the first time found evidence of large amounts of frozen water in the subsurface of Mars.

    By Ron Cowen
  2. Earth

    When the Mercury Falls: Autumn leaves taint river with poison

    Fall foliage that collects in stagnant waterways could release significant doses of a highly toxic form of mercury, which has the potential to accumulate in fish living far downstream.

    By Ben Harder
  3. Earth

    Space Rocks’ Demo Job: Asteroids, not comets, pummeled early Earth

    An analysis of trace elements found in a variety of meteorites suggests that most of the heavenly objects that rained hell on the inner solar system about 3.9