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

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

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 ...

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

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

The Phantom Galaxy (M74) has been imaged in infrared and optical light using the James Webb Space Telescope and Hubble Space ...

NASA's Webb Telescope 'weighs' galaxy Firefly Sparkle, revealing its mass and star formation processes 600 million years ...

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

This galaxy, which is stretched and magnified, glitters with 10 distinct star clusters that formed at different times.