Phys.Org July 10, 2026 • 21:40

Dark energy flips its sign, but the Hubble tension refuses to budge - Phys.org

Dark energy flips its sign, but the Hubble tension refuses to budge - Phys.org

For nearly a century, astronomers have known that the universe is expanding. In the late 1990s, two independent teams, the Supernova Cosmology Project, led by Saul Perlmutter, and the High-Z Supernova Search Team, led by Brian Schmidt and Adam Riess, discover…

by Sehjal Khandelwal, AbraĆ£o J. S. Capistrano and Suresh KumarFor nearly a century, astronomers have known that the universe is expanding. In the late 1990s, two independent teams, the Supernova Cosm… [+7040 chars]

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