We can trace the history of our universe back about 14 billion years, to a fiery period known as the Big Bang, when the universe was extremely hot and dense, and the matter had not yet begun to form the stars, galaxies, and planets that we know today. Einstein’s theories led to the Big Bang model, but they cannot tell us what powered the Big Bang, or what came before it.

Journey back in time using the Resources “Inside Einstein’s Universe” or learn more about the Big Bang with the UniverseForum here.






Journey to the Beginning of Time
Travel through space and time to discover what the universe looked like in its infancy.
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Fly-Through the Universe
Journey through space and time to put the universe's "earliest light" in perspective.
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