Event
Planck has produced the first
all-sky map of the polarized emission from dust at submillimeter
wavelengths. Compared with earlier ground-based and balloon-borne
observations this survey is an immense step forward in sensitivity,
coverage, and statistics. It provides new insight into the structure of
the Galactic magnetic field, as well as the first statistical
characterization of one of the main foregrounds to CMB polarization.
I
will summarize the main results from the data analysis by the Planck
Consortium, particularly focusing on the correlation between the
magnetic field and the column density structures and its relation with
the observed ratio between the amplitudes of the Galactic E- and
B-modes.