The Quest for the Hidden Planets with Dr. Joel Green
By Tumble Media
10/04/15ยท14m 21s
Science fiction is full of adventures to distant planets outside our solar system. But it wasn't until 20 years ago that astronomers were able to confirm that they exist. Dr. Joel Green explains how astronomers discover and photograph planets in galaxies far, far away. Music in this episode is by Podington Bear.