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火星上有足够多的饮用水 – 译学馆
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火星上有足够多的饮用水

There's Plenty of Drinking Water on Mars

火星上有许多的水,而且在火星表面曾经有过流动的水。
There is a lot of water on Mars and there once was a lot of surface flowing water. You
你没有看到过它,因为大部分的水已经混合在土壤之中,这些我们称之为火星上的风化层
don’t see it because most of it is mixed with the soil which we call regolith on Mars.
因此火星上只有百分之一的土壤是非常干燥的、
So the Martian soil can be anywhere from as little as one percent in some very dry deserty
大部分含水量高达60%,所以在当你在火星上的时候
like areas to as much as 60 percent water. So one strategy for getting water when you’re
取水的策略之一就是用手提钻将风化层打碎来得到水
on Mars is to break up the regolith which would take something like a jackhammer because
它很冷,冷到结冰。你可以将那些你需要解决的土想象是一块冰砖或者是
it’s very cold, it’s very frozen. If you can imagine making a frozen brick or a chunk
一块大块的冰混合着一半的土和一半的水
of ice that’s mostly soil and maybe half water and half soil that’s what you would
所以你为了打破它,可以将它放进烤箱。因为它需要加热将水分蒸发。
be dealing with. So you need to break this up, put it in an oven. As it heats up it turns
然后你让那些水蒸气通过蒸馏装置,最后你就得到了纯净的饮用水。
to steam. You run it through a distillation tube and you have pure drinking water that
当然在火星上还有一种更简单的取水方式。在这些国家
comes out the other end. There is a much easier way to get water on Mars. In this country
我们已经开发出工业除湿机。这是一种很简单的机器,简单到
we have developed industrial dehumidifiers. And they’re very simple machines that simply
就是把一种叫沸石的矿物放在房间或者建筑物中。沸石是一种
blow the air in a room or a building across a mineral called zeolite. Zeolite is very
地球上常见的矿物,它在火星上也很常见。沸石有一点像海绵,他可以疯狂的吸收水分
common on Earth, it’s very common on Mars. And zeolite is kind of like a sponge. It absorbs
这样就可以将空气中的湿气都吸收掉。然后你挤压他
water like crazy. Takes the humidity right out of the air. Then you squeeze it and out
他就会又有水流出。早前在华盛顿大学为美国国家航天和宇宙航行局(NASA)工作的科学家
comes the water. And scientists working for NASA at the University of Washington as long
在1990年发明了一种叫为WAVAR的机器,能够非常有效的吸收火星大气中的水分。
ago as in the late 1990s developed a machine called WAVAR that very efficiently sucks water
所以目前水并不是什么重要的问题。
out of the Martian atmosphere. So water is not nearly as significant a problem that it
我们也可以从围绕火星的5个人造卫星中了解到这些。
appears to be. We also know from orbiters around Mars and right now there are five satellites
我们可以从卫星拍摄的关于火星地质表面中研究到
orbiting Mars. We know from photographs that these orbiters have taken and geological studies
火星表面充满着冻冰,且大量的集中在他的两极。
that they’ve done that there is frozen ice on the surface of Mars. Now there’s tons
过多的水分变成了冰或者和二氧化碳混合在一起后冻结
of it at the poles. Some of it is overladen with frozen – or mixed with frozen carbon
但是在火星表面许多的陨石坑上有着显而易见的冷冻水。
dioxide. But in many craters on Mars there apparently are sheets of frozen water. So
所以早期到火星宇航员和早起到火星的旅行者如果邻近这一片有水
if early astronauts or early voyagers to Mars were to land near one of those sheets of ice
的陨坑,就会轻易得到他们所需要的水。
on a crater they would have all the water they need.

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