New research using NASA’s James Webb Space Telescope examines the maximum sizes of gas giant exoplanets, measuring chemical compositions and formation processes in the HR 8799 system.

Since Pluto remains in the sun’s orbit, it should be considered a planet due to the fact that it is still a part of the solar system. And since Pluto is still hanging on at the end of the system, it ...

Hubble is often associated with distant galaxies, but some of its most surprising discoveries were much closer to home. From ...

Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

Fresh observations from the James Webb Space Telescope show how vivid auroras surge through Uranus’s tilted magnetic field ...

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised ...

In late winter, the zodiacal light is visible in the evening in the Northern Hemisphere (false dusk) and in the pre-dawn ...

Far beyond our solar system, in the distant Pegasus constellation, lies a star system that is reshaping our understanding of ...

Earth’s magnetic shield is shifting in dramatic ways. New data from ESA’s Swarm satellites show that the South Atlantic Anomaly — a vast weak spot in Earth’s magnetic field — has grown by nearly half ...

A program about the spring equinox will be front and center at the University of Wyoming Harry C. Vaughan Planetarium during ...

The James Webb Space Telescope has produced the first-ever three-dimensional images of Uranus’s upper atmosphere, revealing a chaotic and shimmering world of infrared auroras.