Red sun, all the time

Imagine living on a world where the sun, a red dwarf, is twenty times the size of the moon, and hangs permanently in the sky. That’s because the planet doesn’t rotate, but has one side permanently light and the other permanently dark. The temperature range, however, is roughly that of Earth, meaning you might have running water. That’s if a new discovery by European astronomers, using telescopes in Chile, holds up. But because it’s 120 trillion miles away, and its information has to be inferred rather than seen, it might not.