One of the biggest (if not the biggest we can never really be sure) black holes in the universe has been discovered it has a mass of 18 Billion suns and is the size of a galaxy. I have to say the sky is a hobby for me as opposed to my main area of knowledge, so I’m not even going to try to explain this one. That said here is the link to the article so they can give you the correct info:
:-)
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