The Hubble tension, a long-standing puzzle in cosmology, arises from conflicting measurements of the universe’s expansion ...

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

These series of step-like bursts happen so rapidly that they are difficult to observe as these singularities wink in and out ...

A slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.