Two extremely bright stars illuminate a greenishmist in this image from the Spitzer Space Telescope's "GLIMPSE360" survey. This mist is comprised of hydrogen and carbon compounds called polycyclic aromatic hydrocarbons (PAHs), which also are found here on Earth in sooty vehicleexhaust and on charred grills. In space, PAHs form in the dark clouds that give rise to stars. These molecules provide astronomers a way to visualize the peripheries of gas clouds and study their structures in great detail. They are not actually green; but are color coded in these images to allow scientists see their glow in infra-red.
This image is a combination of data from Spitzer and the Two-Micron All-Sky Survey (2MASS).
A páxina web da NASA proporciona un gran número de imaxes dos soviéticos/ da axencia rusa do espazo e outras axencias espaciais non norteamericanas. Esta non están necesariamente no dominio público.
{{Information |Description={{en|1=Two extremely bright stars illuminate a greenishmist in this image from the Spitzer Space Telescope's "GLIMPSE360" survey. This mist is comprised
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