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World's fastest supercomputer tasked with dark matter, DNA sequencing

SP - The 21st word in the first sentence of this paragraph shoud be 'know'.

?There is five times more of an unknown ?dark matter? than there is ordinary matter in the universe, and we now it?s there from many different observations, most spectacularly, we?ve seen it bend light in pictures from the Hubble Space Telescope, but its origin is also not understood,? said in a statement, adding that the simulation will help scientists better survey the universe.