Physicists have been puzzling over conflicting observational results pertaining to the accelerating expansion rate of our Universe—a major discovery recognized by the 2011 Nobel Prize in Physics. New ...

WASHINGTON (Reuters) - Fresh corroboration of the perplexing observation that the universe is expanding more rapidly than expected has scientists pondering the cause - perhaps some unknown factor ...

Scientists have made a new calculation of the speed at which the universe is expanding, using the data taken by the powerful new James Webb Space Telescope on multiple galaxies. Webb’s image of one ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

The big picture: Astronomers have observed something unusual in the data gathered by the Hubble Space Telescope: the universe seems to be expanding faster today than it was billions of years ago, ...

Recent observations by the James Webb Space Telescope (JWST) have added new weight to one of the most perplexing problems in cosmology: the Hubble Tension. This issue, which describes the discrepancy ...

New observations from the James Webb Space Telescope suggest that a new feature in the universe—not a flaw in telescope measurements—may be behind the decadelong mystery of why the universe is ...

We have known for almost a century that the universe is expanding, but it's been surprisingly hard to nail down the rate of expansion. The availability of the James Webb Space Telescope is finally ...

A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...