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What is supermassive blackhole?
A very massive blackhole. A supermassive blackhole is larger than a mega-blackhole, but smaller than a hyper-supermassive, (ie. hypermassive) blackhole.
'Two mega-blackholes merged to form one so massive that it became a supermassive blackhole, but even that's nothing compared to the size of a hypermassive blackhole.'
(Please read my definition of a mega & hypermassive blackhole for more information).
supermassive blackhole - video
