A bubbling cauldron of star birth is highlighted in this new image from NASA’s Spitzer Space Telescope of the Cygnus-X star-forming region some 4,600 light-years from Earth. It contains 10 times as much gas as the Orion Nebula – enough to make over three million Suns. Infrared light that we can’t see with our eyes has been color-coded, such that the shortest wavelengths are shown in blue and the longest in red. The middle wavelength range is green.
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