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实力科普:为啥没有天文学家用望远镜看见过黑洞？
source link: http://tech.sina.com.cn/d/s/2018-03-15/doc-ifyscsmv9650997.shtml
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来源：造就微信公众号难以置信地致密、深邃和强大，黑洞体现了物理的极限。没有什么东西可以逃离黑洞，就连光也不行。虽然黑洞激发了人们的想像，比如其他的一些科学概念，但实际上，没有哪位天文学家真的见过黑洞。可以说，我们“听到”过黑洞，科学家已经记
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