When Proxima b’s discovery appeared in Nature on August 24, the media breathlessly announced a new Earth-like planet just 4.2 light years away from Earth.

Astronomers have, for years, anticipated a planet orbiting Proxima Centauri. Michelle Thaller talks with astrophysicist Dr. Patricia Boyd about NASA’s ongoing search for exoplanets and what’s the next step in human exploration of other worlds.

Don’t miss the episode extra below. Michelle stands outside the clean room where the James Webb Space Telescope is being built and walks us through what we’re seeing:

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