Howdy, Neighbor

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 Dr. Patricia Boyd, astrophysicist about NASA’s ongoing search for exoplanets and what’s the next step in human exploration of other worlds.