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  1. Physics

    Relativity and Gravitation

    Learn more about the hot Big Bang, relic radiation, black holes, cosmic strings, inflation, and other topics at the frontiers of cosmology research. Offered by the Cambridge University relativity and gravitation research group, this Web site features illustrated explanations of key concepts, colorful movies, and a link to Stephen Hawking’s pages. Go to: http://www.damtp.cam.ac.uk/user/gr/public/

    By Science News
  2. Ecosystems

    Plants hitch rides with box turtles

    In the pine rocklands of southern Florida, at least nine plant species find new homes by traveling through a turtle's gut.

    By Susan Milius
  3. Plants

    Sunflower genes don’t fit pattern

    Comparison between crop and wild sunflower genes suggests that the plant followed an easy route to domestication.