Good news for all who are interested in black holes! Astronomers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, find that an X-ray source in galaxy NGC 5408 that represents one of the best cases for a middleweight black hole to date. While astronomers have studied lightweight and...

A team of astronomers have discovered a new category of black hole. Named as HLX-1, this new black hole is neither massive nor compact and lightweight. So, it is a medium-sized or intermediate black hole. Before it’s discovery, there was no solid evidence about the existence of intermediate mass...