ESA's Planck mission is the third generation satellite to study the
Cosmic Microwave Background. It has mapped the full sky at nine
frequencies spanning a factor of 30 in wavelength with a resolution
and sensitivity superior to those of any previous experiment. Results
from the nominal 15.5 month mission were released in a set of 28
papers on 21 March 2013. I will present the maps together with
highlights of the cosmological results derived from them. These
include: (i) the most precise measurements so far of the parameters
describing the content and structure of our Universe, (ii) constraints
on the physics driving its very early evolution, (iii) some
anomalies which may indicate physics beyond our current standard model,
and (iv) maps of the distributions of total mass, of baryonic mass and
of star-formation in galaxies throughout the entire visible unverse in
front of the CMB.