The Big Bang theory is one of the crowning achievements of modern science. The basic premise–that the Universe began expanding about 14 billion years ago from a very hot, dense state–has been independently verified many times over. And yet there is widespread confusion and uncertainty about what the theory actually says and what it doesn’t.

Did the Universe begin as some kind of atom? If it’s expanding, what Is it expanding into? Does it have an outside? Are there other Universes? And why did it start?

In this talk, the Dunlap Institute’s Dr. Michael Reid clarifies what we know and don’t know about the Big Bang.

For details, click here.