A computer-created picture of the black hole. XINHUA
As we all know, the sun is large and heavy. Now Chinese scientists have found a black hole that is nearly as heavy as 70 suns. How did they do it? They used LAMOST, a Chinese telescope (望远镜), as well as telescopes in other countries. After observing (观察) a star system called LB-1 for three years, they confirmed (确认) the discovery of the huge black hole. Black holes form when a star dies. Usually, they lose the elements that make them heavy. But this black hole kept most of its heavy elements.