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NASA Has Found An Invisible Galaxy - Hiding for Two Decades


The ALMA (Atacama Large Millimeter Array) has taken an image with pale distortions. That, in and of itself, is not too terribly interesting; however, these distortions point towards an out-of-sight galaxy. A dark, dwarf galaxy holding mostly dark matter…dark matter that appears to be one of the twoabsent pieces of our universe. The image given below, captured by Atacama Large Millimeter Array (ALMA) exposed pale red arcs neighboring a galaxy (viewable in blue-light below) nearly 4 billion light-years away from us. The distortions of light are measured to have been caused by the gravitational force from the dwarf dark galaxy right behind it.




NASA describes, “We are much more sure what dark matter is not than we know what it is.” We surely know that dark matter does not release or absorb light, making it entirely invisible to our telescopes as of now. And even though we have no well-known procedures of observing dark matter, every matter has gravitational force, which has a result on the neighboring matter (even light). As anticipated by Einstein’s theory of general relativity, the gravitational forces of certain objects adjust light and origin a lensing effect, which is also known as gravitational lensing.

This provides clues about many adjacent galaxies, even when they are very far from us or, in this situation, invisible. We can picture these invisible objects in the same precise way that you can see raindrops on a window. You know they are there since they modify the image of the background objects.

The study puts forward that we may not have been observing most of the dwarf galaxies because they are made up usually of dark matter.

For nearly twenty years, astronomers have been seeing the same type of distortions but named them as “discrepancies.” This discovery could give details about those discrepancies and remove possibilities for Atacama Large Millimeter Array (ALMA) to discover similar objects for contrast along with help astronomers discover more about dark matter.

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