The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

While Saturn has been visible in the night sky all of September, this weekend, the ringed planet will shine its brightest.

Titan is quite unique in the solar system. It is Saturn's largest moon, even bigger than Mercury. Moreover, it has a rare feature: a thick atmosphere, which is uncommon among moons. When we think of ...

A cryogenics company called Bluefors needs ten thousand liters of helium-3 from the Moon to be delivered each year from 2028 ...

Orbiting Saturn lies a quiet enigma - Rhea, the second-largest of its moons. Discovered in 1672 by Giovanni Cassini, Rhea has ...

NASA's Juno spacecraft has spied the final "auroral footprint" of a moon of Jupiter, meaning that it has watched as the moon ...

Uranus's moons — what is unique about each moon and why do they orbit at a tilt?

Travel the universe from your seat with our picks from the annual ZWO Astronomy Photographer of the Year competition.

An asteroid the size of a skyscraper is approaching Earth at a sprightly 24,136 miles per hour—and will be at its closest to us in two days' time. The space rock—dubbed "2025 FA22"—is a sizeable 520 ...

Jupiter is the king of moons. With 95 of them orbiting the gas giant, some are so large they rival planets in size. But what ...

"Makemake is one of the largest and brightest icy worlds beyond Neptune, and its surface is dominated by frozen methane," ...

Kent-based Blue Origin announced that its in-space resource-utilization system, Blue Alchemist, has successfully completed ...