What is the minimum resolution required to be of interest for galactic science. Diffuse ISM - 5 armin would be a big improvement over Planck. For the bright regions Planck did well at some spots… For star formation in nearby molecular clouds, we try to get to 0.1 pc. For the closest clouds, this is 2.5 armin. Is this achievable? Shaul says at 800
GHz is 1 armin.