Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

Astronomers finally spotted evidence of auroras on Neptune after years of searching, raising new questions about the planet.

Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

The ice giant officially joins the lineup of planets with auroras, completing the set of all eight planets in the Solar ...

NASA’s James Webb Space Telescope used its Near-Infrared Spectrograph to capture Neptune’s auroras in stunning detail.

Neptune's glowing auroras are captured in the best detail yet by NASA's James Webb Space Telescope. Hints of auroras were ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

The James Webb Space Telescope has detected water vapor and thick clouds on LTT 9779 b, an ultra-hot Neptune locked in a ...

Villanova Fires Coach Kyle Neptune After 3 Years and No NCAA Tournament Appearances PHILADELPHIA (AP) — Villanova fired Kyle Neptune on Saturday after a three-year run where he succeeded Hall of ...

A regular crew rotation mission aboard the orbiting laboratory, the Crew-10 team will be part of the Expedition 72/73 crew while on station where they will perform dozens of science experiments during ...

Faint signatures detected by the Canada France Hawaii Telescope have revealed 128 new moons around Saturn, making it the indisputable frontrunner for having the most moons in our solar system.