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The CMB is almost uniform but contains temperature anisotropies at roughly the level of parts in one hundred thousand.
supportedThe CMB is almost uniform but contains temperature anisotropies at roughly the level of parts in one hundred thousand. CMB anisotropies constrain inflationary initial conditions, matter density, baryon abundance, curvature, neutrino effects, and structure growth.
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Evidence first
The CMB is almost uniform but contains temperature anisotropies at roughly the level of parts in one hundred thousand.
supportedPhotons emerging from different early density regions experience different gravitational redshifts, intrinsic temperatures, and Doppler shifts.
supportedCOBE first detected large-angle anisotropy; WMAP and Planck mapped the pattern at much finer resolution.