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Unformatted text preview: the seeds from which giant superclusters of galaxies formed largest variations are the biggest structures in the universe the imprints of tiny ripples in the fabric of space-time put there during the Big Bang grew into galaxies, clusters, superclusters The Universe is spatially flat, on the largest scales that we can see o if the total matter in the universe is equal to 1 and the OmegaM is only . 27, than there must be .73 of something else that makes up the rest of the universe has to be gravitationally non-attractive Age of the Universe is about 13.7 billion years o First massive stars started forming around 300 million years after the Big Bang...
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- Fall '08