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BBC地平线 宇宙中最极端的天气(The Wildest Weather in the Universe) 第14期

科学家们认为该热木星为蓝色 ..which scientists think is blue in colour. 科学家们推测这些行星都很炽热 so scientists expected them to be hot, 科学家认为 正是这些物质 And it's these substances that are thought 可达到约五万个大气压 onto the graphite, pressures of around 50,000 atmospheres. 可能会有液态甲烷从天上落下来 liquid methane could fall from the sky. 可能热得发烫 而与此同时 can be roasting hot while at the same time 可能是WASP-33 b is a planet called WASP-33 b. 可能是一片贫瘠的冰冻荒地 frozen wasteland on the night side, 可能拥有大气的岩石星球 rocky worlds that could have atmospheres. 可以测量出行星的密度 to measure the density of planets, 可以看到昼半球温度相对较高 So here on the day side things are relatively hot, 可以通过色散 by breaking up the light that we receive at Earth 可以这样直接成像 directly imaged like this. 可以制作出各种钻石 can make a variety of diamonds 来测量这些行星的温度 by measuring their brightness in infrared light. 来给行星成像并获得它的光谱 to both image the planet and get a spectrum of it. 来收集足够的光子 to gather enough photons. 来搜寻行星 that planets induce on their host stars. 来探测行星大气的不同构成 the different substances in the atmospheres of planets. 来研究系外行星大气构成 into its constituent colours. 来自地球大气层的干涉 interference from our own atmosphere. 离其主星很近的行星 that are very close to their stars, 两种方法结合使用 so we can use both of those together 两种间接的方法 that we primarily use to find planets. 凌星法 The transit method 凌星法可以告诉我们行星的大小 The transit method tells us about the size of the planet, 另地球上的相形见绌 which dwarf those on Earth. 另外 大气的组成也刚刚好 And, in addition, the composition of the atmosphere is just right. 另外 金星的大气层几乎完全由 On top of this, Venus's atmosphere is almost entirely made up来自:VOA英语网 文章地址: http://www.tingvoa.com/html/20180516/The-Wildest-Weather-in-the-Universe-14.html