Black holes are pretty dangerous, so it’s a good idea to keep an idea on where all the nearby ones are. How close is the closest one, anyway?

Black holes are pretty dangerous, so it’s a good idea to keep an idea on where all the nearby ones are. How close is the closest one, anyway?
It’s a mystery that’s puzzled astronomers for years. Which came first, supermassive black holes or the galaxies that surround them?
Join us today for news round up and discussion with @awesomeastropod. Also for September skyguide at #365DaysOfAstro
Astronomer just measured the masses of around 50 supermassive black holes that each one is 5 million times more massive than Sun! @unawe #spacescoop #365DaysOfAstro #news #children #astronomy
Astronomers just found a new way to turn up the radio: never mind spinning the volume knob, try spinning an SMBH, a supermassive black hole!
Why the universe expands? How can black holes form in the big bang? more with @PaulMattSutter at #365DaysOfAstro