Sändes torsdag 2/2,
04:00 - 05:00på Discovery Science
How the Universe Works
Säsong 6 Avsnitt 6: Secret History of MercuryFor four years, the Messenger space probe sent images of Mercury, the solar system's smallest planet, closest to the Sun. It has revealed that Mercury has a dangerous secret that may one day threaten life on Earth.
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- 2018-02-13
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