The European Space Agency’s Plank mission is described by them as including a large telescope that collects light from the, “Cosmic Microwave Background and focuses it onto the focal plane of the scientific instruments on board”. The end result is a picture like this where the texture shows us the direction of the galactic magnetic field with a color scale representing the emission from dust. The upper right hand corner of the image is where the dust emission is strongest along the plane of the galaxy.