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The Unsolved Mysteries of the Universe

Kelsey Johnson (University of Virginia)

What caused the Big Bang? Are black holes key to interstellar travel? And how close are we to discovering extraterrestrial life? These are some of the big questions that Kelsey Johnson covers in her fascinating class, “The Unsolved Mysteries of the Universe.”

18 mins

Grabby Aliens

Robin Hanson (George Mason University)

Robin Hanson has come up with a mathematical model that predicts when us earthlings will encounter an advanced alien civilization. Hint: It won’t happen anytime soon.

10 mins

Mothership Connection

Stephen Finley (Louisiana State University)

UFO encounters are usually horror stories of abduction and alien implants. But Stephen Finley says many African Americans describe UFO encounters as positive experiences. This segment originally aired in 2018 on our sister show, BackStory, the American history podcast.

12 mins

Heaven’s Gate

Benjamin Zeller (Lake Forest College)

Benjamin Zeller recounts the tragic history of Heaven’s Gate, a religious group whose members committed mass suicide in 1997. This segment originally aired in 2018 on our sister show, BackStory, the American history podcast.

12 mins

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