Where Are All the Aliens?

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There may be more planets in the Milky Way galaxy than there are stars, some hundreds of billions. So where are all the aliens?

PW Founding Director of Sciences Janna Levin hosted astrophysicist Adam Frank and David Kipping for a conversation on the search for extraterrestrial life. From exoplanets to alien biospheres, from technosignatures to UAPs, this discussion explores the astronomical search for aliens and the implications of such a discovery for life on our own planet.

This project is supported by the Alfred P. Sloan Foundation Program in Public Understanding of Science and Technology, bridging the two cultures of science and the arts.

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