Astronomers have long understood that the universe is expanding—in other words, the space in between cosmic objects that aren ...

Fresh corroboration of the perplexing observation that the universe is expanding more rapidly than expected has scientists ...

These instruments, like the Hubble Space Telescope, reported a value of around 73 km/s/Mpc. The difference between these ...

The rate of expansion of the universe today is a figure known as the Hubble constant, which is typically measured in units of ...

A new theory explains how dozens of mysterious planet pairs discovered by the James Webb Space Telescope, dubbed "JuMBOs," ...

"The discrepancy between the observed expansion rate of the universe and the predictions of the standard model suggests that ...

This month marks three years since the James Webb Space Telescope was first launched, which still feels something like a ...

By reverse-engineering James Webb Space Telescope (JWST) exoplanet data, a team of astronomers just spotted dozens of tiny ...

A dense cluster of bright stars, each with six large and two small diffraction spikes, due to the telescope’s optics.

The findings offer a crucial cross-check for previous Hubble Space Telescope measurements of the universe's mysterious ...

Nicknamed the Firefly Sparkle, this galaxy existed just 600 million years after the Big Bang and gleams with 10 distinct star ...