These have proven to be elusive subjects of study because existing telescopes do not have the resolution to see within a fraction of a light year of the central supermassive black hole, where these little black holes are thought to be concentrated most he
These have proven to be elusive subjects of study because existing telescopes do not have the resolution to see within a fraction of a light year of the central supermassive black hole, where these little black holes are thought to be concentrated most he
事实已经证明，这是一个很难研究的课题，因为现有的望眼镜不能看到在特大黑洞一光年以内的东西，那里才是人们所认为的、小黑洞聚集的地方。