The age of the Universe is usually presented as a simple number: about 13.8 billion years. It sounds settled, almost tidy.

The James Webb Space Telescope captured this image of a young galaxy cluster, MACS J0553.4-3342.

Astronomers have discovered the secrets of early galaxies that pumped the infant cosmos full of dust, but by studying a much ...

Just as the dinosaurs didn't disappear but rather evolved into birds, cosmic dinosaurs in the form of the JWST's Little Red ...

This artist’s concept shows the Beta Pictoris system with the discovered giant exoplanet Beta Pictoris d at the right. It has ...

NASA's James Webb Space Telescope has revealed new details about the blistering lava planet 55 Cancri e, where temperatures ...

Earlier visible-light observations by NASA's Hubble Space Telescope could not show the galaxy's central region because dust blocked the view.

Astronomers found the most distant nuclear disc ever seen, showing galaxies became organized far earlier in the Universe than ...

Researchers studying the universe's "Pink Planet" have discovered an unexpected feature in its atmosphere: clouds made of salt. A team of astronomers led by Northwestern University used the James Webb ...

New observations of WD 1856 b, a gas giant closely orbiting a white dwarf, offer a preview of what could happen to Jupiter and Saturn after the sun dies in about five billion years.

Fabian A black hole does not simply vacuum up everything around it. Most of the time, even a supermassive black hole — an ...

A gas filament stretching 800 light-years across, moving at roughly 1.3 million miles per hour, may finally explain one of ...