5:00 PM: How the Universe Works (S6 E8) (S6) | Discovery Science | 10/21 2025 Discovery Science
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How the Universe Works « at 5:00 PM on Discovery Science

Episode 8

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Published: 2010
Episode: Secret History Of Mercury

For four years, the Messenger space probe sent images of Mercury, the solar system's smallest planet, closest to the Sun. Could it threaten life on Earth?

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