Uncategorized

  1. Humans

    Origins of Maya pottery material remain mysterious

    Scientists haven’t yet identified the source of volcanic ash used in Maya pottery, but they now have geochemical clues about the ash’s composition.

    By Sid Perkins
  2. Planetary Science

    New angles on Mercury

    The NASA MESSENGER spacecraft completed its second flyby of Mercury, yielding crisp new images of a large swath of the planet not seen before.

    By Laura Sanders
  3. Earth

    World’s largest tsunami debris

    Seven immense coral boulders — one of them a three-story-tall, 1,200-metric-ton monster — have been found far inland on a Tongan island and may be the world's largest tsunami debris.

    By Sid Perkins
  4. Physics

    Nobel Prize in physics shared for work that unifies forces of nature

    Understanding of broken symmetry has been crucial to the standard model of particle physics.