The Planets: Inner Worlds
Season 46
Episode 12
About the Episode
The rocky planets—Mercury, Venus, Earth and Mars—were born of similar material around the same time. Yet only one of them supports life. Were Earth's neighbors always so extreme? And is there somewhere else in the solar system life might flourish?
Aired:
07/23/19
| Expires: 08/04/23 | Runtime: 53m 50s