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The Planets: Inner Worlds

Season 46, Episode 12 of 23

The rocky planets - Mercury, Venus, Earth and Mars - were born of similar material around the same time, yet only one supports life. Were Earth's neighbors always so extreme? Is there somewhere else in the solar system where life might flourish?

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Previously Aired

Day
Time
Channel
7/25/2019
2 a.m.
PBS 6
7/26/2019
2 p.m.
PBS 6
7/28/2019
8 a.m.
PBS 6
1/8/2020
9 p.m.
PBS 6
1/9/2020
2 a.m.
PBS 6
1/10/2020
2 p.m.
PBS 6
1/12/2020
7 a.m.
PBS 6
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