Where To Stream How the Universe Works Season 1 Episode 6
Planets (aka Extreme Planets)
- Aired May 17, 2010
- 60 Min
- Rated 8.7
- Number 13 Of 92 Rated Episodes
There are just eight planets in our solar system, but there could be a hundred billion planets in our Milky Way galaxy alone. This show follows the journey of planets as they grow from grains of dust to the magnificently diverse worlds we see today.