双语阅读：Black Holes黑洞（9）

摘要：Earth is so far away from the nearest black hole that its gravity isn't strong enough to pull us towards it at this distance. The

Will Earth get sucked into a black hole? 地球会被黑洞吞噬吗？

Earth is so far away from the nearest black hole that its gravity isn't strong enough to pull us towards it at this distance. The farther away you are from something, the weaker its gravity feels. In this way, a black hole is just like Earth or the Sun. Their gravity only pulls in things that are close enough and a black hole is the same. We are nowhere near a black hole, so we aren't about to get sucked in.

地球离最近的黑洞太远了，以至于它的引力不足以在这个距离上把我们拉向它。你离某物越远，它的引力就越弱。这样看来，黑洞就像地球或太阳一样。它们的引力只会吸引足够近的东西，黑洞也是如此。我们离黑洞很远，所以我们不会被吸进去。

Beyond our galaxy在我们的星系之外

Besides studying black holes in our own galaxy, the Milky Way, space scientists are studying black holes in other galaxies. It was only in the 1920s, less than 100 years ago, that galaxies beyond our own were discovered. They are incredibly far away. But we now have telescopes that can spot signs of black holes there, too.

除了研究我们银河系中的黑洞之外，太空科学家还在研究其他星系中的黑洞。直到20世纪20年代，也就是不到100年前，太阳系外的星系才被发现。它们非常遥远。但我们现在的望远镜也可以发现那里黑洞的迹象。

Many galaxies, like ours, are a huge, whirling spiral shape. Scientists think all these galaxies probably have supermassive black holes in the middle. They have even spotted black holes swallowing other black holes.

许多星系，像我们的星系一样，是一个巨大的旋转螺旋形状。科学家们认为，所有这些星系的中间可能都有超大质量黑洞。他们甚至发现了黑洞吞噬其他黑洞的现象。

Searching the skies From Earth从地球上搜索天空

Space scientists use different types of telescopes to study the sky and search for black holes. But where's the best place to put a telescope? To see space clearly, telescopes have to be far away from city lights. Too much light can get in the way of the faint glow from distant space objects.

太空科学家使用不同类型的望远镜来研究天空和寻找黑洞。但是放置望远镜的最佳地点是哪里呢？为了清楚地看到太空，望远镜必须远离城市灯光。太多的光会挡住遥远太空物体发出的微弱光芒。

Air pollution and rain clouds also cause problems. So telescopes are often on top of high mountains or in deserts, where the sky is very clear. Space scientists are working on a new super-powerful telescope, which will help us see black holes. It will be made up of thousands of radio telescope dishes working together. They collect radio waves coming from faraway objects in space and turn them into images we can see.