Astronomers studying black holes in our galaxy, the Milky Way, have discovered what they believe to be a new type of black hole. This previously unknown class of black holes could be smaller than others that were previously dubbed the smallest black holes.
원문출처 : https://www.cnn.com/2019/10/31/world/new-black-holes-scn/index.html
원문출처 : https://www.cnn.com/2019/10/31/world/new-black-holes-scn/index.html