Scientists Have Measured A Black Hole, And It Has A Mass Of 660 MILLION Suns

Space





Photo credit:

The supermassive black hole is located 73 million light-years away in the galaxy NGC 1332, shown. Carnegie-Irvine Galaxy Survey

As black holes are proverbially black, astronomers have to come up with intuitive ways to work out how big they are. One way to do so is to look at how fast gas around them moves, a technique astronomers used with the Atacama Large Millimeter Array (ALMA) to get the most accurate mass measurement yet.