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Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.
Portrait of Rhea Seddon
NASA

Rhea Seddon

Rhea Seddon is an American astronaut who was born on November 8, 1947, in Tennessee. Before she became an astronaut, Seddon worked as an emergency room doctor in Tennessee.

Seddon became an astronaut in 1979. She has spent over 722 hours in space aboard three spacecraft.

Seddon made her first flight aboard STS 51-D in 1985. This mission had the first unscheduled spacewalk in Shuttle history. In 1991, Seddon flew aboard STS-40. Seddon made her third spaceflight aboard STS-58 in 1993. The crew performed several medical experiments during both of these missions.


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF