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Andrew J.S. Hamilton

Andrew J.S. Hamilton is professor of astrophysicial and planetary sciences at the University of Colorado in Boulder. He teaches courses on cosmology, astrophysics, and astronomy and is an expert on black holes.

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Barbara Sue Ryden

Barbara Sue Ryden is an associate professor of astronomy at Ohio State University in Columbus, author of Introduction to Cosmology and co-author of Basic Astrophysics (2008).

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Christopher S. Kochanek

Christopher S. Kochanek is an astronomy professor and Ohio Eminent Scholar in Observational Cosmology at Ohio State University in Columbus. He is an expert in cosmology.

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Robert J. Scherrer

Robert J. Scherrer is a professor and chairman of the department of physics and astronomy at Vanderbilt University in Nashville, Tenn. His research focuses on cosmology and the structure of the universe. He also blogs about science and science fiction and is an expert on the big bang theory, dark matter and dark energy.

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John F. Hawley

John F. Hawley is a professor and chairman of the astronomy department at the University of Virginia in Charlottesville. He co authored Foundations of Modern Cosmology (2nd edition, 2005).

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John P. Hughes

John P. “Jack” Hughes is a professor of physics and astronomy at Rutgers, The State University of New Jersey, in Piscataway. He teaches courses on cosmology and astrophysics and can talk about the formation of galaxies.

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Jennifer Wiseman

Jennifer Wiseman is an astronomer and director of the Dialogue on Science, Ethics and Religion for the American Association for the Advancement of Science. She is a NASA astrophysicist, where she is the senior project scientist for the Hubble Space Telescope and studies the formation of stars and planets.  

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