S5 0014+81: Scientists expected a medium-sized black hole… but were surprised to find that the black hole’s mass was a staggering 40,000,000,000 (40 billion) solar masses.The Schwarzschild radius of this superheavy black hole is 118.35 billion kilometers.Doesn’t seem like much, does it?Well, here’s the thing: if our sun were the size of a football, the diameter of “big brother” would be 37.42 km.