8 episodes

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 Crash Course Pods, Complexly

    • Science
    • 4.9 • 50 Ratings

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. 7: What’s Keeping the Stars Apart

    Ep. 7: What’s Keeping the Stars Apart

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

    • 1 hr
    Ep. 6: The Story of Dark Matter

    Ep. 6: The Story of Dark Matter

    "How do we know that dark matter is there?" In this episode, Dr. Katie Mack and John Green unpack the full story of dark matter.

    • 1 hr 8 min
    Ep. 5: Black Holes

    Ep. 5: Black Holes

    In this episode, John and Katie take a break from talking through the universe's timeline to focus on a mystery of our cosmos: black holes.

    • 1 hr 5 min
    Ep. 4: When The Stars Turned On

    Ep. 4: When The Stars Turned On

    In this episode, the universe begins to become visible to itself. Dr. Katie Mack teaches John Green about the moment the stars turned on, while John seeks to answer one question... do humans matter to the universe?

    • 58 min
    Ep. 3: The Dark Ages of the Cosmos

    Ep. 3: The Dark Ages of the Cosmos

    In this episode, the universe as we know it starts to come into focus. Dr. Katie Mack teaches John Green about the cosmic dark ages, the possibility of a multiverse, and the connection between the hot, dense early universe and today.

    • 52 min
    Ep. 2: Why We Can Exist

    Ep. 2: Why We Can Exist

    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.

    • 44 min

Customer Reviews

4.9 out of 5
50 Ratings

50 Ratings

Dentine ice ,

So great

Dr Katie Mack is maybe the coolest person ever. She’s so good at explaining things. She’s made so many things I’ve tried to understand in the past click for me

La rose 2022 ,

Amazing!!!

This is just an amazing scientific popularization on this subject! I shared with all my friend and family. I wish to hear more every week.

mrduani ,

Great show

The first two episodes are fantastic, please keep it going!!

I’d love an episode focussed primarily on the weak force. As a physics major from 20 odd years ago, it’s one thing I still struggle to wrap my head around.

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