If Pluto is Frozen, How Is It Generating Heat?

#HowTheUniverseWorks | Tuesdays at 10/9c on Science Full Episodes Streaming FREE on Science GO: https://www.sciencechannelgo.com/how-the-universe-works/ Pluto is far from the Sun and covered in ice, yet the dwarf planet somehow generates heat. Scientists think freezing may actually cause heat production. Subscribe to Science Channel: http://bit.ly/SubscribeScience Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT