New discoveries reveal the dark power of the Sun and how its strange behavior affects life on Earth. This is a mashup of "Space's Deepest Secrets," S04E09, "Mystery of the Northern Lights" and S03E06, "The Sun's Greatest Mysteries." 

NASA's mission to Pluto gathered the first close-up pictures of this strange and distant world, and now, new discoveries and the latest science reveal the secrets of its alien features, which could point to extraterrestrial life.