The Quest for the Hidden Planets with Joel Green [ENCORE]

Our listener Griffin picked an exciting tale of outer space for this week's episode! Astronomer Joel Green explains how scientists discover and photograph planets outside our solar system. Have a few spare minutes? Fill out our listener survey at wondery.com/survey. Ask us a question, listen to more episodes, and donate at tumblepodcast.com. Subscribe to Tumble Science Podcast for Kids and review on iTunes. Follow on Facebook and Twitter. Join our Patreon at patreon.com/tumblepodcast. Thanks for listening!