1. View in High-Res

    (Source: flickr.com)

  2. river

    forrest

    rocks

    outdoors

  1. "This is it.  It’s the coevolution of life and rocks.  Rocks make life. Life makes rocks.” - Dr. Robert Hazen. View in High-Res

    "This is it.  It’s the coevolution of life and rocks.  Rocks make life. Life makes rocks.” - Dr. Robert Hazen.

  2. robert krulwich

    npr

    rocks

    life