“We’re Re-thinking the Evolution of the Universe” –13-Billion-Year Voyage of the Light from Oldest Most Massive Known Black Hole

Astronomers have discovered the most distant known black hole: a so-called quasar whose light has taken 13 billion years to reach us. In consequence, the light shows that quasar as it was 13 billion years ago, a mere 690 million years after the Big Bang.

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