Milky Way over road: Image courtesty photographer and copyright holder Larry Landolfi.
Saturn: NASA photo PIA06193 - Composite of images taken by Cassini orbiter Oct. 6, 2004. Image courtesy NASA/JPL-Caltech
Ancient geography of Earth: Courtesy Ron Blakey, Northern Arizona University.
Oil field in Los Angeles in the 1890s: Courtesy of the California History Room, California State Library, Sacramento, California.
Kelp forest: Image courtesy Olympic Coast National Marine Sanctuary, NOAA.
Polar bears: Steve Hillebrand, U. S. Fish and Wildlife Service
Coral reef: Image courtesy photographer James Watt.
Dust storm over Texas: Photographed by Jeff Jenkins. Image courtesy MaricopaNewHomes.Net
Moving rock at Racetrack Playa, Death Valley, CA: Posted to Flickr by melastmohican (Attribution-Noncommercial-Share Alike 2.0 Generic)
"Watermelon" tourmaline from the Pala Mine, San Diego Co., CA: Photographer - James McEwen, specimen LeHigh Minerals.
Granite teddy bear by artist Tim Hawkinson: Image from UCSD.
Fault diagram: Image from interactive diagram by Earthguide at Scripps Institution of Oceanography.
Collapsed highway overpass, Interstate 5 and 14, San Fernando earthquake, Februrary 1971.: Image courtesy U.S. Geological Survey. Photographer R. Kachadoorian.
United Nations (UN) General Assembly Climate Change Debate, Feb. 13, 2008: UN photo by Eric Kanalstein.
Wall Street sign: Image from http://en.wikipedia.org/wiki/Wall_Street, image author Ramy Majouji.
All American Canal: Image courtesy Imperial Irrigation District.
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