2.3 Λ CDM 23 Fig. 2.3: Analysis of Δ T T of the CMB in spherical harmonics, as observed by the Planck spacecraft. Red Points: Planck Data. Green Curve: Best Fit of ΛCDM Model to Planck Data. Light Blue Shading: Predictions of all Variations of ΛCDM Model that Best Agree with Planck Data. Taken from [43].