The Evidence for Planet Nine s Existence I NOVA I PBS

Two astronomers argue that the farthest objects in the Kuiper Belt are being pushed and pulled by the gravity of Planet Nine, a giant planet orbiting over 10 times farther from the Sun than Neptune. If they find it, itll be the first real expansion of the Suns planetary album in 170 years. PRODUCTION CREDITS Produced and Directed by: Caitlin Saks and Terri Randall