Is there a planet near the center of our galaxy like Trantor? Jessie shares what she's found in the NASA Exoplanet Archive, and Peter answers a viewer question: "How old do stars have to be to have planets?" 
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Explore Exoplanets: The Discoverers; Ep. 9 Dr. Emily Gilbert

Dr. Jessie Christiansen from the NASA Exoplanet Science Institute at IPAC/Caltech interviews the brilliant minds behind the discoveries of planets orbiting other stars.