New Measurement of Hubble Constant Adds to Mystery of Diverging Results (IMAGE)

University of California - Davis

New Measurement of Hubble Constant Adds to Mystery of Diverging Results

Caption

Images made with the W.M. Keck Observatory in Hawaii show how light from three distant galaxies is distorted into multiple images by the gravity of an object in the foreground. UC Davis astronomers have made a new estimate of the Hubble Constant, which describes the expansion of the universe, by observing these distorted images and how long light takes to travel through these gravitational lenses. The results are consistent with some other measurements of the Hubble constant, but not with others based on the cosmic microwave background.

Credit

Chris Fassnacht, UC Davis

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