几乎最后的词：反黑洞是否可能存在？

Would it be possible to have anti-black holes, and how could we tell if we were looking at one? Alex McDowell London, UK A black hole formed by the death of a star composed of antimatter would behave the same way as if its parent star had been matter. The antimatter would have as much gravity as the equivalent amount of matter. Hence, we would see no difference and it is possible that anti-black holes exist. Experiments at the CERN particle physics laboratory show that antimatter falls down, not up. Therefore, an antimatter black hole would still attract matter and not repel it. …