
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.
Latest episodes

21 snips
Apr 24, 2024 • 49min
Ep. 1: The First Fraction of a Second
Dr. Katie Mack and John Green discuss the origins of the universe, emphasizing that humans are made of Big Bang material. They explore the concept of matter-antimatter imbalance, cosmic observations supporting the Big Bang theory, the universe's expansion, cosmic inflation, and the role of hydrogen in the early universe's evolution.

Apr 10, 2024 • 2min
Trailer: The Universe with John Green and Dr. Katie Mack
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.