expansion rate of the universe

Mystery of the Universe’s Expansion Rate Widens With New Hubble Data

Mystery of the Universe’s Expansion Rate Widens With New Hubble Data

Astronomers using NASA's Hubble Space Telescope say they have crossed an important threshold in revealing a discrepancy between the two key techniques for measuring the universe's expansion rate. The recent study strengthens the case that new theories may be needed to explain the forces that have shaped the cosmos.

Improved Hubble Yardstick Gives Fresh Evidence for New Physics in the Universe

Improved Hubble Yardstick Gives Fresh Evidence for New Physics in the Universe

Astronomers have used NASA's Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated nearly a century ago. Intriguingly, the results are forcing astronomers to consider that they may be seeing evidence of something unexpected at work in the universe.