Public domain
Galactic Metropolis
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
The collection of red dots seen here show one of several very distant galaxy clusters discovered by combining ground-based optical data from the NOAO Kitt Peak National Observatory with infrared data from NASA Spitzer Space Telescope.
NASA Image and Video Library’s own descriptionSubjects
Credit lineGalactic Metropolis. NASA/JPL, 2013-12-18. Public domain. ID: PIA17565.
