Dr. Katie Mack, a theoretical astrophysicist, walks #1 New York Times bestselling author John Green through the history of the entire universe - including the parts that haven’t been written yet.

Crash Course Pods: The Universe

Dr. Katie Mack and John Green discuss the fundamental forces of nature, the tiny ovens we know as particle colliders, and how we all can exist.

Ep. 2: Why We Can Exist

Dr. Katie Mack teaches John Green about the beginning of the Universe - including that we are not just made of stardust; we are also made of Big Bang stuff, with pieces of us directly born in the vast, first cacophony.

Ep. 1: The First Fraction of a Second

Join Dr. Katie Mack, a theoretical astrophysicist, and #1 New York Times bestselling author John Green as they walk through the history of the entire universe - including the parts that haven’t been written yet. The Universe debuts on April 24th.

Trailer: The Universe with John Green and Dr. Katie Mack

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Crash Course Pods: The Universe

What's Crash Course Pods: The Universe about?

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