Crash Course Pods: The Universe

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.

Ep. 11: How It All Ends

Ep. 10: The Future

Ep. 9: The Cosmos and Us

Ep. 8: Life In Our Universe

Ep. 7: What’s Keeping the Stars Apart

Ep. 6: The Story of Dark Matter

Ep. 5: Black Holes

Ep. 4: When The Stars Turned On

Ep. 3: The Dark Ages of the Cosmos

Ep. 2: Why We Can Exist

Ep. 1: The First Fraction of a Second

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