Saturn is the sixth planet from the Sun and the second-largest in the solar system, a gas giant famous for the bright, wide rings that make it instantly recognizable through even a small telescope. It's also, less famously, home to more confirmed moons than any other planet — by a wide margin.
A planet made of rings
Saturn's rings are made almost entirely of ice particles, with a small amount of rocky debris, ranging in size from tiny grains to chunks as big as a house. They're surprisingly thin — despite spanning hundreds of thousands of kilometers across, the main rings are typically less than a kilometer thick. Nobody knows for certain how old they are; estimates range from a few hundred million years old to nearly as old as the solar system itself.
Saturn itself is so much less dense than Earth that, in theory, it would float in water — if you could find a bathtub big enough.
An explosion of moons
For decades, Saturn was known to have a few dozen moons. That changed dramatically starting in 2023, when astronomers using large ground-based telescopes began finding faint, tiny moons in huge batches by tracking their slow movement across the sky over many nights. In March 2025 alone, 128 new moons were confirmed at once. By mid-2026, Saturn's confirmed moon count had climbed past 290 — nearly three times as many as Jupiter, its closest competitor.
Almost all of these newly found moons are small, irregular objects just a few kilometers across, likely captured by Saturn's gravity long ago and, in many cases, fragments of larger moons that were shattered in ancient collisions. The count is expected to keep climbing as surveys continue.
Amid all those tiny newcomers, one moon stands apart: Titan, Saturn's largest, is bigger than the planet Mercury and the only moon in the solar system with a thick atmosphere. It even has rivers, lakes, and seas — not of water, but of liquid methane and ethane, making it one of the strangest and most fascinating worlds in the solar system.
Why people care
Saturn is one of the most visually striking objects in the night sky and a favorite target for backyard telescopes. Beyond the view, its moons — especially Titan and the icy, geyser-spouting Enceladus, which hides a subsurface ocean — are among the most promising places in the solar system to search for conditions that could support life.