It happened so quickly. Somehow we lost a planet. Were you taught that we had nine planets in our solar system? Well, listen to the history of how Pluto got knocked down and kicked out of the Planet Club leaving us with only eight. And btw, there are some scientists that don't like that.

Finally, an ASMR podcast for Smart People! Relax, meditate even. Let the whispered sounds of knowledge seep into your mind.