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Echoes from the Beginning: A Journey through Space and Time

Thursday, May 29, 2008
8:00 pm - 9:30 pm

In what many call a “golden age of cosmology”, astronomers can now observe the universe with unprecedented precision, resulting in spectacular progress in the search for the origin of the universe. Yet, for all the impressive progress, fundamental questions remain. What is the mysterious “dark energy” driving space to rapidly expand? What existed before the big bang? Is there an origin of time? Do we live in a multiverse?

Our audience joined Science Friday’s Ira Flatow in conversation with leading cosmologists Lawrence Krauss, Paul Steinhardt, and Lyman Page, and historian of science Helge Kragh as they discussed and debated new advances that are shaping our understanding of the cosmic order and our place within it.

This program is part of the Big Ideas Series, made possible with support from the John Templeton.


Ira FlatowRadio Host

Ira Flatow is the host of Science Friday on PRI, Public Radio International. He anchors the show each Friday, bringing radio and Internet listeners worldwide a lively, informative discussion on science, technology, health, space and the environment. Flatow is president of ScienceFriday, Inc. and founder and president of Science Friday Initiative.

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Helge KraghScience Historian

Helge Kragh is a leading science historian whose research focuses on the history of cosmology. He is the author of several books including, Cosmology and Controversy and Conceptions of the Cosmos. Kragh is a professor in the History of Science Department at the University of Aarhus in Denmark.

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Lawrence KraussPhysicist, Author

Lawrence Krauss is an internationally known theoretical physicist and best-selling author. His research focuses on the intersection of cosmology and elementary particle physics. Krauss’s work addresses questions about the origin of matter in the universe.

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Lyman PagePhysicist

Physicist Lyman Page measures the cosmic microwave background radiation left over from the Big Bang to better understand the very early universe and how it has since evolved. He is the Henry DeWolf Smyth Professor of Physics at Princeton University.

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Paul SteinhardtPhysicist, Princeton
Dirac Medalist

Paul J. Steinhardt is the Albert Einstein Professor in Science and Director of the Princeton Center for Theoretical Science at Princeton University, where he is also on the faculty of …

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