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Just How Old is the Universe?

UO physicist Jim Schombert’s research highlighted in Around-the-O

“The distance scale problem, as it is known, is incredibly difficult because the distances to galaxies are vast and the signposts for their distances are faint and hard to calibrate,” he said.

Schombert and colleagues used a new approach, recalibrating a distance-measuring tool known as the baryonic Tully-Fisher relation independently of the Hubble constant. They took the distances of 50 galaxies, as determined in part with help from the Spitzer Space Telescope, and used that hard data to estimate the distances of 95 other galaxies.

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