Our Place in the Universe: Cosmology from Ancient Greece to Today
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Michelle Thaller discussed how we have perceived own own place in the universe since ancient times. Speaker Biography: Michelle Thaller is assistant director for science communication and higher education at NASA's Goddard Space Flight Center. For transcript, captions and more information, visit http://www.loc.gov/today/cyberlc/feature_wdesc.php?rec=6172
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