Crash Course Pods: The Universe

In our last episode, Dr. Katie Mack and John Green discuss what the ultimate fate of the u... more

In this episode, Dr. Katie Mack gives John Green an idea of what to expect for the future ... more

In our journey through the history of the entire universe, we have finally reached the pre... more

In this episode, Katie Mack and John Green discuss why life was able to happen.  Head to h... more

In this episode, Katie Mack and John Green discuss the wonder keeping the stars apart... d... more

"How do we know that dark matter is there?"   In this episode, Dr. Katie Mack and John Gre... more

In this episode, John and Katie take a break from talking through the universe's timeline ... more

"Is free will still in the equation?" In this episode, the universe begins to become visib... more

"The only thing that could have happened, happened"  In this episode, the universe as we k... more

"That’s why we’re here. Something broke." Head to https://policygenius.com/crashcourse to ... more

"Part of me was there?" Dr. Katie Mack teaches John Green about the beginning of the Unive... more

Join Dr. Katie Mack, a theoretical astrophysicist, and #1 New York Times bestselling autho... more