What's Happening in Your Body?

The future of our star is to become something called a white dwarf when all the fusion is finished and it's blown out a huge amount of its mass into space. Energy always spreads out through the universe, and this is just another way for that to happen. Something tat's really hot emits at low frequencies and at high frequencies. Something that's cold only emits at the lower frequencies because it doesn't have enough photons inside of it to admit of the higher frequencies. It's not like there's a single wave length emitted by a certain object based on its temperature. It's a whole spectrum.