Scientists have discovered a "monster black hole" so massive that, in theory, it shouldn't exist.
원문출처 : https://www.cnn.com/2019/11/28/asia/china-black-hole-discovery-intl-hnk-scli-scn/index.html
원문출처 : https://www.cnn.com/2019/11/28/asia/china-black-hole-discovery-intl-hnk-scli-scn/index.html