We stand on the verge of writing a nearly complete cosmic history. Astronomers have now observed galaxies going back 97 percent of the way to the big bang, which was 13.8 billion years ago.
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We stand on the verge of writing a nearly complete cosmic history. Astronomers have now observed galaxies going back 97 percent of the way to the big bang, which was 13.8 billion years ago.
Already a subscriber? Sign in.