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外星球的怪异极端天气The Strange and Extreme Weather on Other Planets

2021-03-18

时代英语·高一 2021年1期

We often complain about the weather, particularly as more extreme weather events become more commonplace here on Earth, but what if we spent our holiday weekends battling 5,400-mile-an-hour winds or temperatures hot enough to melt lead?

我們经常抱怨天气不好,尤其是现在地球上的极端的天气事件变得越来越普遍的情况下。但是如果有一天,我们周末出游时遇到时速5400英里(约合8690公里)的大风,或者气温升高到能把金属都融化的程度,那又会怎么样呢?

Weather, good or bad, is not only a permanent fixture on our planet—its prevalent, and even more extreme, out there in the depths of space.

天气,不管是好是坏,不仅仅是我们居住的星球上才有的自然生态,在宇宙中也是普遍存在的,而且宇宙中的天气只会更加极端。

Lets start close to home, with our neighbor Venus, the most inhospitable place in the solar system. Basically, Venus is a biblical hellhole. Home to a thick atmosphere mostly consisting of carbon dioxide, the atmospheric pressure on Venus is 90 times that found on Earth. This atmosphere traps much of the Suns radiation which means temperatures on Venus can reach up to 460℃—so youd be crushed and boiling within seconds if you were to set foot here. But if that doesnt sound painful enough, rain on Venus is made up of extremely corrosive sulphuric acid, which would severely burn any interstellar travelers skin.

让我们从家附近、地球的邻居——金星开始说起。金星是太阳系中最不适宜居住的星球。可以说,金星就是《圣经》里的地狱。金星的大气层很厚,主要由二氧化碳组成,其大气压力是地球的90倍。这种大气层捕获了大部分的太阳热辐射,意味着金星的温度可以高达460摄氏度,所以如果你踏上金星,几秒钟的工夫身体就会起皱变形和沸腾。但如果这听起来还不够痛苦,再想想金星上的雨是由极具腐蚀性的硫酸组成,这将严重灼伤星际旅行者的皮肤。

Due to the planets extreme surface temperatures, this rain would evaporate before landing. Yet even more bizarrely, there is “snow” on Venus. Not the type that you could have snowball fight with: this stuff is made up of the basalt frost remnants of metals vaporised by its atmosphere.

由于金星表面温度极高,这些雨水在落到金星地表前就会被蒸发。然而更怪异的是,金星上竟然有“雪”。但不是那种你可以用来打雪仗的雪,金星上的“雪”是由玄武岩的霜冻残余金属在大气中蒸发而成的。

At the other end of our solar system you have gas giant planets Uranus and Neptune. The latter, our most distant planet, is home to frozen methane clouds and the most violent winds in the solar system. Because of the planets topography, which is fairly flat, theres nothing to slow down these supersonic methane winds which can reach speeds of up to 1,500 mph.

在太阳系的另一端,有天王星和海王星这些巨大的气态行星。海王星是距离我们最遥远的行星,这个星球上有冰冻的甲烷云和太阳系最猛烈的风。海王星的超音速甲烷风风速每小时可达1500 英里 (约合2400公里),由于地形相当平坦,没有任何障碍可以减缓其风速。……

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