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Hubble Tension
April 21 , 2024
218 days
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- Scientists from Germany and the U.K. have proposed a radical explanation for the discrepancy in measurements of the universe’s expansion rate, known as the Hubble tension.
- New data from the James Webb Space Telescope (JWST) also confirms a long-standing mystery.
- It is the expansion rate of the universe we see today doesn't match what we expect based on the early universe.
- Using observations of the young universe, scientists can calculate an expected expansion rate for the present day.
- They can also directly measure the current expansion with special objects called "standard candles."
- When these two values are compared, they disagree significantly.
- The Hubble constant, denoted as H0, describes the rate at which galaxies are moving away from each other due to the expansion of the universe.
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