New Measurement of Hubble Constant Adds to Cosmic Mystery

Andy Fell — October 23, 2019 - 10:15am

New measurements of the rate of expansion of the universe, led by astronomers at the 91��Ƭ, Davis, add to a growing mystery: Estimates of a fundamental constant made with different methods keep giving different results.

“There’s a lot of excitement, a lot of mystification and from my point of view it’s a lot of fun,” said Chris Fassnacht, professor of physics at 91��Ƭ Davis and a member of the international SHARP/H0LICOW collaboration, which made the measurement using the W.M. Keck telescopes in Hawaii.

Astronomers Measure Universe Expansion, Get Hints of ‘New Physics’

Andy Fell — January 26, 2017 - 5:01pm

Astronomers have just made a new measurement of the Hubble constant, the rate at which the universe is expanding, and it doesn’t quite line up with a different estimate of the same number. That discrepancy could hint at “new physics” beyond the standard model of cosmology, according to the team, which includes physicists from the 91��Ƭ, Davis, that made the observation.

Hubble constant Content

New Measurement of Hubble Constant Adds to Cosmic Mystery

Astronomers Measure Universe Expansion, Get Hints of ‘New Physics’