5,000 black superholes hidden in NASA's X-ray images
NASA's Chandra Observatory captures images with 5,000 giant black superholes, which have the largest density of black holes ever recorded.NuSTAR telescope discovered 10 new black superholes
After a period of operation, this nuclear spectrophotometer has recently yielded a surprising result. It not only found a black hole, but 10 black holes in the center of distant