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What If: Planet Earth

What If: Planet Earth

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Popular Science

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LATEST EPISODE

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S1 E47: A Few More Seconds

Original Air Date: Feb 5, 2025

Explore pivotal moments in history and science that could have changed everything with just a few more seconds!

Nov 10

•

5:56PM

•

27 Min

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2025

•

TV-PG

AVAILABLE NOW

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Season 1

  • Season 1
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S1 E47: A Few More Seconds

Original Air Date: Feb 5, 2025

Explore pivotal moments in history and science that could have changed everything with just a few more seconds!

Nov 10

•

5:56PM

•

27 Min

•

TV-PG

•

Available with Freestream

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S1 E23: 5 Seconds that Could Change the World

Original Air Date: Feb 3, 2025

Explore catastrophic scenarios where Earth stops spinning, drops to absolute zero and loses oxygen -- all for five seconds!

Nov 10

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5:27PM

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29 Min

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TV-PG

•

Available with Freestream

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S1 E20: 50 Percent Off: Halved Worlds

Original Air Date: Feb 3, 2025

Imagine a world split in half; dive into scenarios where planets, moons and entire systems are halved; what survives?

Nov 10

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4:55PM

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32 Min

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TV-PG

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Available with Freestream

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S1 E15: In the Trenches

Original Air Date: Feb 2, 2025

Descend into the world's deepest trenches, exploring the hidden mysteries and unique life forms of the ocean floor!

Nov 10

•

4:32PM

•

23 Min

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TV-PG

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Available with Freestream