The Great Desert Teacher Training Workshop -- Image Credit

Hand-held space shuttle and International Space Station images images are public domain, c/o NASA and are available through the Earth Sciences and Image Analysis Laboratory, NASA Johnson Space Center.
Digital enhancement and/or annotations copyright 2003 by Allan H. Treiman and Lunar and Planetary Institute.
All rights reserved.

Copyright Allan Treiman, LPI.
Updated 09/22/03.
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