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

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 ...

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

Historically, the Hubble constant was introduced by Edwin Hubble in 1929, marking a major breakthrough in our understanding of the expanding Universe. Since then, refining its value has become a ...

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

In just over 10 hours of test observations, the Vera C. Rubin Observatory captured millions of celestial objects, opening the ...

Seen as a long strand with smaller threads branching, the Quipu superstructure contains 68 galaxy clusters spanning 1.4 ...

This week, astronomers spotted the third known interstellar visitor to our Solar System. First detected by the Asteroid ...

What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...

These approaches have led to divergent estimates of the Hubble constant, a key parameter describing the Universe's expansion. It even has a name: the Hubble tension.