For nearly a century, astronomers have known that the universe is expanding. In the late 1990s, two...
SCIENCE
July 10, 2026
Dark energy flips its sign, but the Hubble tension refuses to budge
For nearly a century, astronomers have known that the universe is expanding. In the late 1990s, two independent teams, the Supernova Cosmology Project,...
For nearly a century, astronomers have known that the universe is expanding. In the late 1990s, two independent teams, the Supernova Cosmology Project,...
Author: Phys.org
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