Astronomers observe most-distant supermassive black hole yet discovered
https://www.upi.com/Science_News/2017/12/06/Astronomers-observe-most-distant-supermassive-black-hole-yet-discovered/7511512588636/?utm_source=sec&utm_campaign=sl&utm_medium=2 Source Cited: www.upi.com Sign in to see full entry.