How Fast Is the Universe Really Expanding?
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 post How Fast Is the Universe Really Expanding? first appeared on Quanta Magazine
Adam Riess, the astrophysicist who won the Nobel Prize for his work on the accelerating expansion of the universe, recently discussed the Hubble tension with Quanta Magazine. This mystery arose from two main methods for estimating the current expansion rate of the universe producing significantly different answers. This discrepancy, now known as the Hubble tension, has caused considerable debate and angst in the field.
One of its most surprising aspects is that Adam Riess himself, a key figure in discovering the acceleration, is now raising concerns about the issue.
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