What If the Galactic Habitable Zone Limits Intelligent Life?

The effect of inhabitable space in the galaxy may be why we haven't seen aliens.

What If the Galactic Habitable Zone Limits Intelligent Life? PBS Space Time

Premiered May 18, 2022
What If the Galactic Habitable Zone Limits Intelligent Life?

Our solar system is a tiny bubble of habitability suspended in a vast universe that mostly wants to kill us. In fact, a good fraction of our own galaxy turns out to be utterly uninhabitable, even for sun—like stellar systems. Is this why .. most of us .. haven’t seen aliens?

About the Program

PBS Space Time

PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.

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