The power spectrum of this phenomenon plots power versus multipole moment.
The observed variations in this phenomenon undergo exponential damping at high values of script L due to diffusion. The fluctuations in this phenomenon have intrinsic, Doppler, and ISW components. The differential cross-section for scattering interactions involving this phenomenon equals 3 over 16 pi times one plus cosine squared theta times the Thomson cross-section. The power spectrum of this phenomenon plots power versus multipole moment. The (*) B-modes of its polarization were observed by BICEP2 to give evidence of gravitational waves. This phenomenon, which has its origins in the epoch of recombination, has a blackbody spectrum with a temperature around 2.7 kelvins. For 10 points, name this nearly isotropic thermal radiation that fills the universe and is used as evidence for Big Bang cosmology.
The observed variations in this phenomenon undergo exponential damping at high values of script L due to diffusion.
CMBR [or the cosmic microwave background radiation; accept CMBR anisotropy or cosmic microwave background radiation anisotropy]