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rssMB to Phys.orgEnglish · 4 days ago

Galaxy-group motion suggests slower expansion in our cosmic neighborhood

phys.org

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Galaxy-group motion suggests slower expansion in our cosmic neighborhood

phys.org

rssMB to Phys.orgEnglish · 4 days ago
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Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that analyzes the motion of two nearby galaxy groups within their surrounding cosmic flow. The results indicate that the local universe is expanding more slowly than previously estimated, bringing measurements of nearby galaxies into close agreement with observations of the early universe. The findings also suggest that less dark matter is required to explain the dynamics of galaxies within these groups than previously assumed.

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