Composite image of Arp 26, also known as M101 or the Pinwheel Galaxy.
X-rays from Chandra (purple) show the hottest areas of the spiral galaxy. Infrared light from Spitzer (red) traces dust and visible light from Hubble (yellow) highlights starlight . Ultraviolet light from GALEX (blue) shows the emission from young stars.
Credit: NASA, CXC, SAO;NASA, JPL-Caltech;NASA, STScI
Source: https://chandra.harvard.edu/photo/2012/m101/