Every self-respecting geek knows that Superman was sent to Earth right before his home planet of Krypton exploded. It’s also part of comic-book lore that Krypton orbited a red star, as the switch to our yellow star’s light is supposedly what imbues Superman with his powers.
Now famed astronomer Neil deGrasse Tyson has used his power of scientific reasoning to help pin down a real-life red star that could have hosted the home of the Man of Steel.
Red stars can scale from dim dwarfs to mighty supergiants. But as astronomer Phil Plait explains, the lifetime of a red supergiant would probably be too short for the advanced Kryptonian civilisation to emerge, while known red giants are too far away from Earth to fit with Superman’s back story. That means Krypton had to orbit a red dwarf, which can be older and closer.