Are We Alone in the Universe?

Are We Alone in the Universe?

Are We Alone in the Universe?
To understand our role in the universe, we have to explore the cosmos. Astrophysicist and author Dr. Janna Levin guides us in exploring the origins of the cosmos, black holes, string theory, and more! Plus, Dr. Levin answers a question from Hailey, wh...

Transcript