These 36 galaxies, imaged by Hubble, all contain both Cepheid stars and Type Ia supernovae, the two main markers used to calculate the Hubble constant ...

In 2016, astronomers using Hubble discovered that the Universe is expanding between five and nine percent faster than previously calculated by refining the measurement of the Hubble constant and ...

And it might take dozens more of these multi-messenger signals to accurately measure the Hubble constant with this improved standard-siren method. But the art of multi-messenger astronomy is rapidly ...

Researchers from the University of Waterloo have proposed a new method to measure the Hubble constant that could help resolve one of modern cosmology's pressing puzzles: the Hubble tension.

Some astronomers think one set of measurements or the other will turn out to be wrong. Others believe that the tension is a ...

These results predict that the Hubble constant should be around 67. So the mystery remains, and astronomers don’t have an explanation for why these numbers differ.

Cosmologists can then use that measurement to calculate what the present-day Hubble constant ought to be. While subject to far less uncertainty than the supernova method, it does require the use ...

To destroy enough matter to explain the Hubble tension, black holes would have to merge at an unrealistic rate.

The fate of the universe, or at least the Hubble tension, doesn’t just hinge on JWST. Many other facilities will come online in the next few years, providing more evidence for this investigation.

Of course, the universe isn’t 23 or 25 years old — it’s more like 13.8 billion, and pinning down the Hubble Constant will help us calculate that age more exactly.

Combined Webb and Hubble Space Telescope data showing the galaxy NGC 5584, 72 million light-years away. Image: Image NASA, ESA, CSA, Adam G. Riess (JHU, STScI) Image Processing Alyssa Pagan (STScI) ...