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How it all began

From the big bang to inflation, Astronomy looks at the history of cosmology.
The Big BangOnly in the last couple of decades can it be said that cosmology has become a science in the traditional sense, where rigorous theories being developed are compare to precise data. The story starts with the discovery in 1929 by the American astronomer Edwin Hubble that matter in the universe is organized into galaxies and that these galaxies seem to be moving away from us. The farther away a galaxy is, the faster it is receding. The universe at large is expanding. Hubble's discovery...

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