THE COSMIC MICROWAVE BACKGROUND

There's a kind of light that fills the entire macrocosm, but you can not see it with your eyes. It does n't shine like stars, it does n't glow like fire, and it does n't travel in sharp shafts. rather, it exists far and wide at formerly, faint and steady, like a quiet echo that noway fades. This light is known as the cosmic microwave oven background, and it carries with it one of the most important suggestions about the temperature of the macrocosm. It is n't just another form of radiation. It's a remnant, a leftover signal from a time when everything was radically different from what we see moment.