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Scientists have discovered a virtually invisible galaxy that challenges our understanding of the universe.
The set of stars is so dim astronomers had missed it in earlier seems at the identical half of area. But the nearly undetectable galaxy has now been noticed by scientists who can not clarify the way it received there.
“With our present knowledge we do not understand how a galaxy with such extreme characteristics can exist” stated Mireia Montes, the creator of a brand new research reporting the find.
The galaxy is each extremely dim – ten instances extra faint than different objects of its kind – but in addition stretches out over ten instances the area in comparison with galaxies with the identical quantity of stars.
It takes its “Nube” identify from the Spanish for cloud, and was named by the youngster of one of the astronomers who found it, in recognition of its enormous however thinly unfold composition.
It was discovered when Ignacio Trujillo, one of the different authors on the paper, who has been utilizing photos from the Sloan Digital Sky Survey to look at a selected half of the sky. On one of these examinations, a faint patch of gentle appeared that intrigued the scientists concerned.
Scientists then used different photos to substantiate that the patch of gentle was not an error however an actual object in area.
Even nonetheless, a lot about the object stays unknown. It is so faint that it’s onerous to know the way distant it’s, for instance, although scientists consider it’s roughly 300 million gentle years from us.
As nicely as being mysterious, the Nube galaxy is already difficult our understanding of the cosmos. Usually, galaxies are likely to have extra density of stars of their internal areas, falling away rapidly the additional away from the center – however the newly found galaxy doesn’t present that impact, and it’s far more fixed all through.
That doesn’t match with out present understanding of cosmology, and simulations are usually not in a position to scale back the excessive traits. We are left and not using a viable clarification inside the at the moment accepted cosmological mannequin, that of chilly darkish matter” stated Montes.
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