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Is the Hubble constant—a key part of how we measure the expansion of our universe—in a crisis? Some cosmologists say yes.
The historic measurement allowed astronomers to derive an independent estimate of the Hubble constant. So far, that value slots right in between the Planck values and those derived from the cosmic ...
The constant was first calculated by the US astronomer Edwin Hubble, whose name it now bears. Although the measurements have become increasingly precise in recent years, they have not provided a ...
The Hubble constant, a set number that connects a galaxy’s speed to its distance from Earth and tells us how fast the ...
For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...
This convergence suggests that the previously observed divergence might be due to systematic errors in earlier measurements. However, additional research is needed to confirm these findings.
New measurements of the universe’s expansion using James Webb Space Telescope appear to resolve the Hubble constant conflict ...
Citation: “Status Report on the Chicago-Carnegie Hubble Program (CCHP): Measurement of the Hubble Constant Using the Hubble and James Webb Space Telescopes.” Freedman et al, The Astrophysical ...
What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...