SOFIA/FORCAST mid-infrared images of the M42 star-forming region in Orion shown as insets/overlays on a Spitzer near-infrared image. SOFIA image in blue box: Blue, Green, Red respectively symbolize infrared light with wavelengths of 20, 31, and 37 μm. SOFIA image in red box: B, G, R = 8, 20, and 37 μm. Background Spitzer image: B, G, R = 3.6, 4.5, and 7.9 μm.
James De Buizer/NASA/DLR/USRA/DSI/FORCAST team; Spitzer image credit: NASA/Caltech-JPL