Unexplainable takes listeners right up to the edge of what we know … and then keeps on going. Host Noam Hassenfeld and an all-star team of reporters — Byrd Pinkerton, Meradith Hoddinott, and Mandy Nguyen — tackle scientific mysteries, unanswered questions, and everything we learn by diving into the unknown. New episodes drop every Wednesday.

For thousands of years, there have been four basic tastes recognized across cultures. But thanks to Kumiko Ninomiya (a.k.a. the Umami Mama), scientists finally accepted a fifth. Could there be even more? (First published in 2022.)
Guests: Kumiko Ninomiya, biochemist and former director of the Umami Information Center; Gary Beauchamp, former director of the Monell Chemical Senses Center; Sarah Tracy, historian of science; Camilla Arndal Andersen, neuroscientist; Paul Breslin, professor at Rutgers University
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Unexplainable

How umami blew up taste

Some of the largest lakes in the world have been buried under miles of ice for millions of years. Is there life hiding down there? And if so, could life be found in even more extreme places … beyond our planet?

Guest: John Priscu, microbiologist at Montana State University

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What’s hiding under the Antarctic ice?

Genetic libraries are treasure troves of information about life from around the world. They’re helping researchers develop everything from vaccines to crops to cosmetics. But who actually benefits from the discoveries scientists make using all this DNA and RNA?
Guests: Benji Jones, environmental correspondent at Vox’s Future Perfect; Deborah Fuller, professor of microbiology at the University of Washington
For show transcripts, go to vox.com/unxtranscripts
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Biopiracy

Some scientists think an explosion of AI awareness and feeling might be just around the corner. Others think it’s impossible for an AI to ever become conscious. How will we know?
Guest: Oshan Jarow, staff writer at Vox’s Future Perfect
For show transcripts, go to vox.com/unxtranscripts
For more, go to vox.com/unexplainable
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