NOVA
PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

Season 46 · Episode 12 ·
The Planets: Inner Worlds
The rocky planets Mercury, Venus, Earth and Mars all have similar origins, but only one supports life.
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Episode 12 of season 46 of NOVA: “The Planets: Inner Worlds”. Aired 2019-07-24. Watch it online free on ZapFlix.