Planck
Precision mapping of CMB temperature and polarization.
Overview
ESA's Planck satellite mapped the cosmic microwave background with unmatched precision, measuring its temperature fluctuations and polarization across the whole sky. Its results established the standard flat ΛCDM cosmological parameters.
Key discoveries
- Most precise all-sky CMB map to date
- Refinement of the ΛCDM cosmological parameters
- Whole-sky maps of polarized Galactic dust emission