Question

求英语翻译，急！！！！！！！！！！

谁能帮帮我翻一下~
When astronomers look carefully at a galaxy, they can measure how fast the stars within it are moving. The motions of the stars are the result of the gravitational forces from all the other matter in the galaxy. But here is the key problem: When astronomers add up all the matter in all the stars and gas and dust visible with all different kinds of telescopes, it doesn't total nearly enough to explain the motions they observe. The stars are moving around much faster than they should be! In other words, all the matter we can see is not enough to produce the gravity that is pulling things around. This problem shows up over and over again almost wherever we look in the universe. Not only do stars in galaxies move around faster than expected, but galaxies within groups of galaxies do too. In all cases, there must be something else there, something we can't see, something dark.
The name scientists have given to the missing material is "dark matter." We can see the bright matter, like stars, but we know some other matter is there because of how it pulls on the bright matter. The black background of space that we tend to ignore when we enjoy the beautiful sights of the night sky really isn't as empty as you might think. As surprising as it might seem, there is more than 50 times more dark matter than bright matter in the universe.
But what exactly is the dark matter made of? Black holes and objects just a little too small to be stars (so they can't produce light of their own) make up some of it. But all of that adds up to less than one-fifth the total amount of dark matter that must be out there. We believe most of the dark matter is composed of new particles smaller than atoms that are different from anything scientists have ever detected and studied. It seems that the very essence of most of the matter in the universe is different from what you and I and rocks and trees and Earth and the Sun are made of.

不要用在线翻译工具！谢谢了，好的加分！

Answer 1

当天文学家在银河系仔细看，他们可以测量恒星内有多快，它的移动。明星的提案是从所有的其他事项在银河系引力的结果。但这里的关键问题是：当天文学家加起来在所有的恒星和气体和尘埃与各种不同类型的望远镜看到的所有问题，它不会总几乎不足以解释他们观察的议案。星星们走动速度远远超过他们应该！换句话说，所有的事情，我们可以看到的是不够的，产生的重力是拉动了形势。这个问题表明了一遍又一遍，几乎所有我们在宇宙中寻找。不仅星系中星体的移动速度比预期快，但在星系群的星系也这样做。在所有情况下，必须有其他的东西在那里，我们看不到的东西，黑暗的东西。
科学家的名字给缺少的材料是“黑暗物质”。我们可以看到明亮的星星一样的问题，但我们知道有一些其他的事情，因为它是如何光明的事拉。在空间黑色背景下，我们往往忽略，当我们享受夜空的美丽景象实在并不像你想象的空白。由于奇怪，因为它似乎，有超过50倍，更美好的事情在宇宙中的暗物质。
到底什么是暗物质构成的？黑洞和对象只是一个小规模太小，星级（所以他们不能产生自己的光）使一些它。但是，所有这些都加起来不到五分之一的暗物质，必须在那里总额。我们相信，最重要的是暗物质组成的新粒子比原子更小的东西是从科学家曾经发现和研究不同的。看来，对此事最宇宙的本质是从你和我，以及岩石和树木，地球和太阳是由不同的。