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Enceladus and Titan get a lot of attention, but the Cassini mission also provided countless insights about dozens of Saturn’s other moons. Cassini captures the first high-resolution glimpse of the bright trailing hemisphere of Saturn's moon Iapetus.
Saturn has 83 moons. Sixty-three moons are confirmed and named, and another 20 moons are awaiting confirmation of discovery and official naming by the International Astronomical Union (IAU). This Cassini image from 2012 shows Titan and its host planet Saturn. Image Credit: NASA/JPL-Caltech/SSI.
Titan has a radius of about 1,600 miles (2,575 kilometers), and is nearly 50 percent wider than Earth’s moon. Titan is about 759,000 miles (1.2 million kilometers) from Saturn, which itself is about 886 million miles (1.4 billion kilometers) from the Sun, or about 9.5 astronomical units (AU).
Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons. In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons.
Jupiter is surrounded by dozens of moons. Jupiter also has several rings, but unlike the famous rings of Saturn, Jupiter’s rings are very faint and made of dust, not ice. Namesake
Saturn's moons came to life only through Cassini’s many close flybys. Cassini has since performed scores of flybys of Saturn’s moons and has passed thrillingly close to some of them — 16 miles (25 kilometers) at the closest (Enceladus, in Oct. 2008) — providing jaw-dropping views of surface features, and up-close inspections of the ...
Uranus is slightly larger in diameter than its neighbor Neptune, yet smaller in mass. It is the second least dense planet; Saturn is the least dense of all. Uranus gets its blue-green color from methane gas in the atmosphere. Sunlight passes through the atmosphere and is reflected back out by Uranus' cloud tops.
The ancient Romans could easily see seven bright objects in the sky: the Sun, the Moon, and the five brightest planets (Mercury, Venus, Mars, Jupiter, and Saturn). They named the objects after their most important gods.
There are more than 200 known moons in our solar system and several more awaiting confirmation of discovery. Of the eight planets, Mercury and Venus are the only ones with no moons. The giant planets Jupiter and Saturn lead our solar system’s moon counts.
In Depth. This site is maintained by the Planetary Science Communications team at and for . NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.