Scientists have discovered a black hole so large that, in theory, it "should not even exist" within the galaxy.
The gargantuan object is a "stellar mass" black hole, which is a type much smaller than the "supermassive" black holes thought to be at the center of most galaxies. Stellar mass black holes were previously estimated to have a mass limit of about 20 times that of Earth's sun.
The newly discovered stellar black hole, called LB-1, is "twice as massive" as what scientists previously thought possible, containing about 70 times the mass of the sun.
Scientists have offered some possible explanations for the enormous phenomenon, including the possibility that it is actually two smaller black holes orbiting each other.
🔦 Although scientists have known about black holes for decades, they only just captured an image of one for the first time this year.