That heat, we expect, would be dumped into surrounding space as some sort of radiation and so we would see it.
That explains the microwave background!
No it doesn’t. Photons travel until they hit something in straight lines. The microwave background comes uniformly from all directions behind stars and galaxies.
That explains the microwave background!
No it doesn’t. Photons travel until they hit something in straight lines. The microwave background comes uniformly from all directions behind stars and galaxies.