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看黑洞相片前了解一下托福听力中的黑洞词汇(中英文)

2019-04-10 15:20

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  第一张黑洞相片将被发布。全球六地同步展现。据人民日报音讯,4月10日晚9时,人类首张黑洞相片即将在比利时布鲁塞尔、智利圣地亚哥、我国上海和台北、日本东京、美国华盛顿全球六地同步发布。此前,天文学家都是经过各种直接的依据来标明黑洞的存在,而此次经过EHT事情视界望远镜项目则是经过这个具有地球直径的“虚拟望远镜”直接观测到了黑洞边际的图画。

  >>>检查人类首张黑洞相片

  事实上,黑洞也是托福听力经常出现的内容。下面真钱麻将网托福频道就和咱们共享有关黑洞(black holes)的英文介绍和常用词。

  Astronomers think the object shown in this Chandra X-ray Observatory image (in box) may be an elusive intermediate-mass black hole. Located about 32 million light-years from Earth in the Messier 74 galaxy (M74), this object emits periodic bursts of x-rays at a rate that suggests it is much larger than a stellar-mass black hole but significantly smaller than the supermassive black holes found at the centers of galaxies. Few such middling black holes have been discovered, and scientists aren't sure how they form.

  Black holes are the cold remnants of former stars, so dense that no matter—not even light—is able to escape their powerful gravitational pull.

  While most stars end up as white dwarfs or neutron stars, black holes are the last evolutionary stage in the lifetimes of enormous stars that had been at least 10 or 15 times as massive as our own sun.

  When giant stars reach the final stages of their lives they often detonate in cataclysms known as supernovae. Such an explosion scatters most of a star into the void of space but leaves behind a large "cold" remnant on which fusion no longer takes place.

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