NOVA

Mars, the Red Planet, Was Once Blue

Clip: Season 46 Episode 13 | 1m 25s | Video has closed captioning.

Much like Earth, Mars was once a water world, rich with the building blocks for life. But it didn’t last. Was there enough time for life to take hold on the Red Planet before it dried out?

Aired: 07/24/19

Rating: NR

Problems Playing Video? | Closed Captioning

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