摘要：In this volume, we proudly present a special feature on the results from the ESA Planck mission, based on data released by ESA
and the Planck Collaboration between February and August 2015. This Planck data release is both the first to include the data
gathered over the full length of the mission and the first to contain polarization information. The all-sky polarization maps at
high frequencies offer a new view of the sky, and the overall dataset constitutes a very important probe for both cosmology and
foreground astrophysics.
