Astronomers have made new measurements of the Hubble Constant, a measure of how quickly the Universe is expanding, by combining data from the Hubble Space Telescope and the James Webb Space Telescope.

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

They arrived at a value for the Hubble constant of 76.5 kilometers per second per megaparsec, which essentially means that ...

However, DESI's measurements of the Hubble constant in the modern universe, using the brightness of type Ia supernova ...

Puzzle over ‘Hubble constant’ could suggest many of our basic assumptions are wrong Stay up to date with notifications from The Independent Notifications can be managed in browser preferences.

This law uses the also-eponymous Hubble constant to describe the rate at which the universe is expanding. ... and made measurements of the Hubble constant 2.5 times better than HST could.

That includes a measurement of the Hubble constant. Initial model results seemed to line up with astronomical measurements at around 73 km/s/Mpc, but as observations of the cosmic microwave background ...

Together with the standard model of cosmology, the images show that the universe is expanding with a Hubble constant that’s lower than the JWST measurement by about 5.6 kilometers per second per ...

The historic measurement allowed astronomers to derive an independent estimate of the Hubble constant. So far, that value slots right in between the Planck values and those derived from the cosmic ...

Black Holes as “Standard Sirens” to Measure the Hubble Constant. When black holes collide, they merge to produce an even larger black hole, ...

The Hubble constant is a measure of the Universe's expansion, as you can tell from its units, which are kilometers per second per Megaparsec. So, each second, every Megaparsec of the Universe ...

Using this high-precision measurement as a first rung, the team calibrated the rest of the cosmic distance ladder. They arrived at a value for the Hubble constant of 76.5 kilometers per second per ...