Debate over the universe’s expansion rate may unravel physics. Is it a crisis?

Science News | 7/30/2019 | Emily Conover
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L. Verde, T. Treu and A.G. Riess. Tensions between the Early and the Late Universe. arXiv:1907.10625. Posted July 24, 2019.

A. Riess. Local H0 from SH0ES. KITP Conference: Tensions between the Early and the Late Universe. Santa Barbara, Calif., July 15, 2019.

KC - Wong - Al - H0LiCOW - XIII

K.C. Wong et al. H0LiCOW XIII. A 2.4% measurement of H0 from lensed quasars: 5.3σ tension between early and late-Universe probes. arXiv:1907.04869. Posted July 10, 2019.

G.C.-F. Chen et al. A SHARP view of H0LiCOW: H0 from three time-delay gravitational lens systems...
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