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Cover Image: "Earth Waves at Cassini." Authored by: NASA/JPL-Caltech. Located at: https://commons.wikimedia.org/wiki/File%3AEarth_Waves_at_Cassini.jpg. Content Type: Public Domain Content. License: Public Domain: No Known Copyright.
Lumen Learning provides a simple, supported path for faculty members to adopt and teach effectively with open educational resources (OER). Read more about what we do.