Saturn Planet Coloring Page: Free Printable PDF Sheet

Saturn and Its Famous Rings

A Planet Built Mostly From Gas

Saturn is the second-largest planet in the solar system, yet it is made almost entirely of hydrogen and helium gas with no solid surface to stand on. Its density is so low that Saturn would actually float if a bathtub large enough existed to hold it, since it is the only planet in the solar system less dense than water. That light, gassy body is part of why Saturn's fast spin - one full day lasts only about 10.7 hours - flattens the planet slightly at its poles into a visibly squashed sphere.

Saturn takes about 29.5 Earth years to complete a single orbit around the sun, meaning a child born the year Saturn was overhead in a certain part of the sky would be almost thirty before it returned to that same spot. Despite that huge distance, Saturn is still bright enough to see with the naked eye from Earth on a clear night, appearing as a steady golden point of light rather than a twinkling star.

Rings Made of Ice and Rock

Saturn's rings are not solid bands at all - they are made of countless individual chunks of ice and rock, ranging from grains smaller than sand to boulders the size of a house, each one orbiting the planet on its own path. The main ring system stretches roughly 175,000 miles across, wide enough to fit almost the entire distance between Earth and the moon, yet in most places the rings are only about 30 feet thick.

Scientists still debate exactly how the rings formed, with leading theories pointing to a shattered moon, a comet torn apart by Saturn's gravity, or icy leftovers from the solar system's early formation. Gaps between the rings, some visible even through a small backyard telescope, are carved out by the gravity of small moons that orbit directly inside the ring system.

A Planet With Dozens of Moons

Saturn has more than 140 confirmed moons, more than any other planet in the solar system, ranging from tiny ice chunks to Titan, which is larger than the planet Mercury. Titan is especially notable because it has a thick atmosphere and liquid lakes on its surface, though those lakes are made of liquid methane and ethane rather than water, since surface temperatures there drop to roughly minus 290 degrees Fahrenheit.

Another moon, Enceladus, shoots geysers of water vapor and ice hundreds of miles into space from cracks near its south pole, hinting at a liquid ocean hidden beneath its icy crust. Those geyser particles actually feed one of Saturn's fainter outer rings, meaning a moon is quietly resupplying the ring system it orbits within.

Missions That Studied the Ringed Giant

NASA's Cassini spacecraft orbited Saturn for 13 years, from 2004 to 2017, sending back detailed images of the rings, storms, and moons before intentionally diving into Saturn's atmosphere to avoid contaminating any of its potentially life-supporting moons. Cassini discovered several of Saturn's smaller moons and confirmed the geysers on Enceladus, reshaping what scientists understood about where life-friendly conditions might exist beyond Earth.

Saturn's atmosphere also hosts a strange hexagon-shaped jet stream pattern at its north pole, a six-sided storm system roughly twice as wide as Earth that has persisted for decades. No other planet in the solar system has a storm shaped quite like it, making the ringed planet in this scene one of the most visually distinct worlds a telescope can find.