The Heart and Soul nebulae are seen in this infrared mosaic from NASA’s Wide-field Infrared Survey Explorer, or WISE.
Also visible near the bottom of this image are two galaxies, Maffei 1 and Maffei 2.
Maffei 1 is the bluish elliptical object (R) and Maffei 2 is the spiral galaxy (L). All four infra-red detectors aboard WISE were used to make this image.
Colour is representational: blue and cyan represent infra-red light at wavelengths of 3.4 and 4.6 microns, which is dominated by light from stars. Green and red represent light at 12 and 22 microns, which is mostly light from warm dust.
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