Finding something worth knowing…

Space

Why do our best measurements of the universe's expansion rate disagree with each other?

Nobel Laureate Dr. Adam Riess explains the Hubble Tension, a scientific mystery where different methods of measuring the universe's expansion rate yield conflicting results. This video explores why this discrepancy challenges our current understanding of the cosmos.

The Hubble Constant represents the rate at which the universe expands. Named after astronomer Edwin Hubble, who helped discover this expansion, the constant was a primary goal for the Hubble Space Telescope to measure upon its launch.

The Hubble Tension arises because the expected value of this expansion rate shifts depending on the equipment used to observe it. Dr. Adam Riess discusses the significance of this mystery, which remains a critical puzzle in modern cosmology.

Source: Expansion Rate: The Hubble Tension

More in Space · All topics