Great Basin National Park: Astronomy Ranger Minuteの無料動画を見ましょう

(67.1 MB) 12 May 2016に追加されました 101 回再生しました Nature
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Great Basin National Park: Astronomy Ranger Minute

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アニメーションの説明：

It has been asked "what do we lose, if we lose the night?" Take a journey through the brilliant night skies of Great Basin National Park. The dark skies are exceptional but are under threat, but ask yourself this question: does a solution exist?