'Standard model' of cosmology called into question by new measurements

[Judi Lynn]

By Chelsea Gohd 19 hours ago



New measurements have allowed scientists to alter the Hubble Constant and change our perception of the expanding universe. (Image credit: Sophia Dagnello, NRAO/AUI/NSF)


Do scientists need to re-examine the basic model of the universe?

Using new measurements of cosmic distances, astronomers have refined their calculation of the Hubble Constant, a number that describes how fast the universe is expanding at different distances from a specific point in space.

The new measurements have prompted scientists to consider revising this important figure and provided support for the idea that the "standard model of cosmology," the theory that describes the fundamental nature of the universe, may need to be revamped.

These new measurements, made using a variety of telescopes around the world, emphasize a discrepancy between previous measurements of the Hubble Constant and the value of this constant predicted by the "standard model," astronomers said. The "standard model" classifies all known elementary particles and describes three of the four fundamental forces at play in the universe: the strong force, the weak force and the electromagnetic force. The theory does not include the gravitational force.

More:
https://www.space.com/universe-standard-model-hubble-constant-new-measurements.html