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 ...

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

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

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

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

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

Recent observations from the James Webb Space Telescope (JWST) challenge the previously held cosmic theory on the universe's ...

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

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

When the James Webb Telescope came online in 2021, it promised to give a clearer picture of the universe that could help ...

The mid-infrared light image shows astronomical features that can’t be seen with visible light cameras or in previous ...