«Demoting Pluto» by Stephen Kortenkamp
English | MP3@192 kbps | 43 min | 59.6 MB
English | MP3@192 kbps | 43 min | 59.6 MB
When is a planet not a planet? Dwarf planets orbit the sun, are solid bodies, and are not moons. But they are not considered regular planets. Learn more about these spherical oddities and why Pluto is still hotly debated today.