Amazing stuff!
Unfortunately, the reporting about these hidden galaxies is obscure if not amateurish, possibly due to early stage research.
"Astronomers have peered back in time to find what looks like a population of "hidden" galaxies that could hold the key to unlocking some of the universe's secrets. If their existence is confirmed it would "effectively break current models of galaxy numbers and evolution." The possible galaxies may also provide the missing piece of the puzzle for the energy generation in the universe in infrared light.
That's because their combined light would be enough to top-up the energy budget of the universe to the maximum we observe, effectively accounting for all remaining energy emissions at these long wavelengths.
Possible evidence of the galaxies' existence was detected on the deepest ever image of the universe at long far-infrared wavelengths, which features almost 2,000 distant galaxies ...
"What we found was possible evidence of a completely new, undiscovered population of faint galaxies hidden in the blur of the image, too faint to be detected by conventional methods in the original analysis. ...
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'Hidden galaxies' could be smoking gun in universe riddle (original news release)
The final SPIRE Dark Field image map created by combining the Blue (250 micrometres), Green (350 micrometres) and Red (500 micrometres) SPIRE camera channels together, each channel stacking a total of 141 individual images on top of each other. The blobs on the image are all individual galaxies or groups of galaxies. However, the image is so crowded that there is almost no empty space with the faintest galaxies merging into the background light in the map.
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