Polarization of the CMB Anisotropy

Abstract

I review why we expect the CMB anisotropy to be polarized, what we can learn from studying polarization and the level of the experimental challenge it presents. A discussion of current and future polarization sensitive experiments will focus on the expected sensitivity of PLANCK.

To appear in the Proceedings of the MPA/ESO Conference "Evolution of large-scale structure", Garching, August 1998