What are black holes? What does E=mc2 mean? How did the Universe begin? How will it end? How is the twin paradox resolved?

Learn about Einstein's Theory of Relativity online and find the answers to these questions about the fundamental nature of matter and energy in the Universe.

To find out more about the class, go to the Syllabus For a list of suggested readings, click here: Readings Worried about math? Fear not, and click here: Math Get fun, but useless, stuff at the Relativity Store. Register for the class using a major credit card or PayPal

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(Hubble Deep Field graphic courtesy of NASA, 1996). For more information about this image, click here.