# The CMB - A Deep Dive The Universe first erupted in a fiery hot ball of glowing matter, emitting light as it expanded, its thermal energy leading to excitations and excitations on unimaginable scales. This residual light remains with us in the form of the CMB, the cosmological microwave background. --> hot universe glowed, emitting photons different photons emitted as it cooled stretching of universe redshifted photons into microwaves (once were in visible light) # The CNB - Into Lunacy # The GWB - Abject Horror