This image from the Hubble Space Telescope shows the massive galaxy cluster Abell 1351, located in the constellation Ursa ...

Take a deep breath: the universe is not just big it’s mind-bogglingly, practically scandalously huge. And it’s growing. A ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director: James ...

Is the Hubble constant—a key part of how we measure the expansion of our universe—in a crisis? Some cosmologists say yes.

New measurements of the universe’s expansion using James Webb Space Telescope appear to resolve the Hubble constant conflict ...

The constant was first calculated by the US astronomer Edwin Hubble, whose name it now bears. Although the measurements have become increasingly precise in recent years, they have not provided a ...

In the new study, Riess's team measures the Hubble constant to a value of 74.03 kilometers per second per megaparsec, give or take 1.42.

Webb telescope helps refine Hubble constant, suggesting resolution to long-standing expansion rate debate by Louise Lerner, University of Chicago edited by Lisa Lock, reviewed by Robert Egan ...

The "theory method" gives a value for the Hubble constant of about 152,000 miles per hour per megaparsec (68 kilometers per second per megaparsec, or Mpc), while the "observation method" regularly ...

Credit: Astronomy: Roen Kelly, after E. Hubble, “A relation between distance and radial velocity among extra-galactic nebulae,” PNAS 15, 168-173 (1929) For a Hubble-Slipher constant ...