... Tonight's Sky . ... Planck peels back the layers of the universe . ... The Planck mission released a new data catalog Tuesday from initial maps of the entire sky. ... Planckт??s new catalog also includes unique data on the pools of hot gas that permeate roughly 14,000 smaller clusters of galaxies; the best data yet on the cosmic infrared background, which is made up of light from stars evolving in the early universe; and new observations of extremely energetic galaxies spewing radio jets. ...