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Looking for the Invisible Search for the Dark Matter There is perhaps no current problem of greater importance to astrophysics and cosmology than that of dark matter The search for dark matter has dominated cosmology for half of the century But one might ask what is dark matter What is it consisting of And how do we know that its there As much as 90 percent of the matter in the universe is invisible Detecting this dark matter will help astronomers better comprehend the universes destiny Eighty-four years after Albert Einstein introduced the world to his theory of general relativity scientists are seeing that he was right all along about measuring what we now call dark matter Astronomers supported by the National Science Foundation have found the first evidence of an effect called cosmological shear a phenomenon predicted by Einsteins theory in which light from distant cosmic objects bends due to gravitational forces In Astronomy as in all sciences one can detect an object in one of two ways either by observing it directly or observing the effect that it has on other Its always been known that there was matter in the night sky that we couldnt really directly see So the question we have to ask is what do we see in the night sky Well the answer to that question can be as simple as start and what people might call other stuff or as astronomers calls it stars and dark matters So the question still stands as to what exactly is dark matter And no one exactly know what it is but we do have few guesses as to what it might be and certain evidence that it is there What could the dark matter be And what is it consisting of The dark matters are thought to be clusters of galaxies without light Whatever dark matter turns out to be we know for certain that the
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