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How Fast Is the Universe Really Expanding? - Quanta Magazine

One of the most contested issues in astrophysics is our understanding of the Universe’s expansion. Adam Riess discusses why there is disagreement and what might resolve it.

The Chairman's DailyThursday, July 23, 20262 min read
How Fast Is the Universe Really Expanding? - Quanta Magazine

One of the biggest mysteries in cosmology seems to keep getting bigger. Astronomers have known since the 1930s that the universe is expanding, but in the 1990s, the discovery that this expansion is a… [+66416 chars]

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