Science
How fast is the universe expanding? Galaxies provide one answer: New measure of Hubble constant highlights discrepancy between estimates of our cosmic fate – Science Daily
Among the methods astronomers have found to measure the expansion rate of the local universe, the Hubble constant, surface brightness fluctuations is potentially…
Determining how rapidly the universe is expanding is key to understanding our cosmic fate, but with more precise data has come a conundrum: Estimates based on measurements within our local universe don’t agree with extrapolations from the era shortly after the Big Bang 13.8 billion years ago.A new estimate of the local expansion rate — the Hubble constant, or H0 (H-naught) — reinforces that discrepancy.
Using a relatively new and potentially more precise technique for measuring cosmic distances,…
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