Janna Levin

Teleporting people through space is still science fiction. But quantum teleportation is dramatically different and entirely real. In this episode, Janna Levin interviews the theoretical physicist John Preskill about teleporting bits and the promise of quantum technology.

If evolution favors the survival of the fittest, where did the impulse to help others come from? Host Janna Levin speaks with Stephanie Preston, a neuropsychologist who studies the biology of altruism.

The Joy of Why podcast returns for a third season, with two co-hosts, 24 brilliant guests and 24 all-new episodes.

The astrophysicist Janna Levin reflects on the newly unveiled, first-ever photograph of a black hole.