The moons are all tiny, barely two miles across in size. When you purchase through links on our site, we may earn an ...

A bizarre, ultra-light planet is cloaked in such a thick haze that even JWST can’t reveal its composition. Its unusual size and orbit are forcing scientists to rethink how planets form.

These worlds are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog.

Life on Earth is a precious thing, especially given what astronomers know about the visible universe. Although researchers have so far identified over 6,000 exoplanets beyond our solar system, only a ...

Jupiter Icy Moons Explorer (JUICE) probe is on its (very long) way to Jupiter, and will finally arrive at the King of Planets ...

The James Webb Space Telescope reveals active volcanoes on Io in unprecedented detail thanks to an innovative technique.

This month's new moon occurs at 9:23 p.m. EDT on March 18 (0223 GMT on March 19) as the lunar disk passes between the sun and Earth. Around this time, the lunar disk is invisible from our perspective, ...

Inspired by galaxies and constellations, planets and their moons, astronauts, space travel, and more, these celestial names will send you over the moon.

It's one of those weeks when the stars and planets are getting frisky! Lots is happening, so pay attention! Mercury ...

The hot Jupiter planet WASP-76b, pictured in this artist’s concept, orbits its host star once every 1.8 days. Credit: ESO/M. Kornmesser, CC BY 4.0 Giant Jupiter-like planets dominate the star systems ...

February is ending with a bang as six planets align in the night sky on Saturday. The planets are always actually lined up, but we just can't see them all at once. The planets are in a line called an ...