Foregrounds: Unveiling the Galactic Weather to the CMB

Cosmic Microwave Background observations became the tool to probe the the fist events of cosmic history After WMAP data releases, galactic and extragalactic foregrounds ale perceived as the main limiting uncertainity for the near-future search for the B-mode polarization inprints horn the inflationary era, either through satellites or ground-based experiments like Bram at Dome-C A combination of technology scanning strategy and above all, accurate knowledge of polarized foregrounds will be necessary for an optimal mapping of B-mode CMB Polarization In addition, the search for a better understanding of the galactic foregrounds will provide unprecedented knowledge on the Milky Way structure and star formation