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konec 09:00 |
TV kanál National Geographic |
(One Strange Rock: Shield) Věda For the privileged few who have looked down at the Earth from space, the thin blue line of our planets sets the Earth apart from every other planet weve seen. It sustains life. The story of how the Earth creates and regulates that oxygen rich-atmosphere is mind-blowing: A flying river, a global dust storm, a collapsing glacier and the most important creature youve never heard of. All connected together to allow life and the planet to breathe. Earth protects itself from the sun. The David and Goliath story of Earths relationship with its greatest threat, our seemingly benign Sun. The Sun is the big violent boss of the Solar System throwing out devastating particles and deadly radiation. Without several shields, one generated by our unique planetary core, another by our atmosphere, and a third by our interconnected weather systems, life on Earth would never have survived. MP (United Kingdom)
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