The Lost Daughters of Aten: Planet 9

Pluto may not be a planet, but it definitely exists. Not every case is so clear. The history of near-Earth astronomy contains many cases of bodies that may or may not have ever existed in the solar system we call home. In this episode of Stuff to Blow Your Mind, Robert Lamb and Joe McCormick continue their journey through space to survey once-hypothetical bodies that took work to prove, once-imagined bodies that are now confirmed phantoms, and the unsolved mysteries where questions remain. This time, the destination is a hypothetical planet beyond the orbit of Pluto. 

Top 10 Extreme Environments

Journey to the worst places on Earth and beyond...

Birth of a Planet

To most people, planets are one of the most familiar of astronomical objects. After all, we do live on one. But how do these massive spheres get their start? Tune in to learn more about the birth of planets -- including our own -- in this podcast.