Instruments on NASA's Spitzer Space Telescope capture multiple light wavelengths on multiple channels. This animation depicts data from a channel collecting light with wavelengths of 4.5 microns (millionths of a meter). The right side of the 3.6-micron animation overlaps with the left side of the 4.5-micron animation. The similarity of the overlapping structures suggests that the glowing arises from true objects, not artifacts from the light-collecting instrument.
Credit: A. Kashlinsky et al.; Nicolle Rager Fuller, National Science Foundation; NASA/JPL-Caltech/GSFC