Medium-size black holes are much less massive than the supermassive black holes, which are up to billions of solar masses and reside in the centers of large galaxies.

 
  • 中等大小的黑洞比超大黑洞的质量要小很多,超大黑洞的质量可以达到数十亿个太阳系质量,兵存在于更大的星系中。
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