Cat’s Eye Nebula: 3000 light years away, as seen by Hubble and Gaia NASA/ESA/HEIC/The Hubble Heritage Team/STScI/AURA (background image); ESA/Gaia/DPAC/UB/IEEC (blue points)By Shannon HallGaia is on a mission. The space-based observatory just released its first map of the positions and distances of stars in our galaxy, and will chart a whopping billion...