Astronomers analyzing archival images from JWST have discovered an unexpectedly vast population of the smallest asteroids ...

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

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

Astronomers can't agree how fast our cosmos is expanding. A new James Webb Space Telescope study has made the crisis even ...

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

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

JWST researchers reported on measurements built on last year's confirmation based on Webb data that Hubble's measurements of ...

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

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

The odds of us finding extraterrestrial life anytime soon are pretty slim. But if there's anything that can deliver us a sign ...

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

The James Webb Space Telescope has spotted five galaxy candidates dating to just 200 million years after the Big Bang, making ...