At the risk of adding to the reputation of scientists as killjoys, those of you curious about how ridiculous or realistic Superman’s powers are might want to check out Science of Superman.

It ponders this interesting question: Superman’s powers came about because Krypton had higher gravity than Earth, so how big was Krypton to create enough gravity to provide Superman’s strength?

The answer, although I encourage you to check how they figure it out, is 3,000 times the mass of the sun - which is, alas, impossible, since at that mass, Krypton would have collapsed into a black hole long before life evolved. As I said, killjoys ….