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原文:
Why would the surface of Titan light up with a blinding flash? The reason: a sunglint from liquid seas. Saturn’s moon Titan has numerous smooth lakes of methane that, when the angle is right, reflect sunlight as if they were mirrors. Pictured here in false-color, the robotic Cassini spacecraft orbiting Saturn imaged the cloud-covered Titan last summer in different bands of cloud-piercing infrared light. This specular reflection was so bright it saturated one of Cassini’s infrared cameras. Although the sunglint was annoying — it was also useful. The reflecting regions confirm that northern Titan houses a wide and complex array of seas with a geometry that indicates periods of significant evaporation. During its numerous passes of our Solar System’s most mysterious moon, Cassini has revealed Titan to be a world with active weather — including times when it rains a liquefied version of natural gas.
中文翻譯:
標題：泰坦的奇妙光芒✨
最近，土星的衛星泰坦（Titan）表面出現了令人瞩目的閃光現象，這是因為其液態甲烷湖泊在陽光的照射下，當角度合適時，形成了如鏡子般的反射。這幅圖片以偽色彩顯示，機械探測器卡西尼（Cassini）在去年的一次任務中，利用穿透雲層的紅外光不同波段，捕捉到這一奇特景象。這種鏡面反射如此明亮，以至於飽和了卡西尼的一個紅外相機。
雖然這種光澤現象讓科學家們感到困擾，但同時也提供了有價值的信息。反射區域證實了泰坦北部擁有多樣且複雜的海洋，並顯示出顯著的蒸發周期。在卡西尼探測器多次接近我們太陽系中這個最神秘衛星的過程中，揭示了泰坦擁有活躍的天氣，甚至有時會降下液化天然氣的雨。
#泰坦 #Titan #卡西尼 #Cassini #液態甲烷 #MethaneLakes #太陽系 #SolarSystem #天文學 #Astronomy #科學探索 #SpaceExploration #神秘衛星 #MysteriousMoon #自然奇觀 #NaturalWonder
來源:NASA每日圖片
