If planets had to submit a resume, Saturn’s would be the flashiest one in the pile , oversized rings, hundreds of moons, and a work history spanning four decades of robotic visitors. Here’s what its CV would actually say.

Basic Profile

  • Position: 6th planet from the Sun
  • Type: Gas giant
  • Diameter: ~120,536 km — about 9.4 times Earth’s
  • Mass: ~95 times Earth’s
  • Density: Lower than water — Saturn would float, if you could find an ocean big enough
  • Moons: 274 confirmed as of the latest count, more than any other planet in the solar system
  • Rings: Yes — 7 main ring groups (labeled A through G), including the famous Cassini Division gap

Vital Stats

  • Age: About 4.5 billion years old, roughly the same age as Earth
  • Day length: Around 10.7 hours — one of the fastest rotations of any planet
  • Year length: 29.5 Earth years (10,759 Earth days)
  • Distance from the Sun: About 1.43 billion km (9.5 AU)
  • Average surface temperature: -178°C

Special Skills

  • Sustaining winds up to 1,800 km/h in its upper atmosphere
  • Hosting Titan, the only moon in the solar system with a thick atmosphere and its own weather cycle — of liquid methane, not water
  • Keeping a ring system so thin that, at points, it’s only about 10 meters thick despite spanning hundreds of thousands of kilometers across

Employment History

  • 1979: First visited by Pioneer 11, which provided the first close-up look at the planet and its rings
  • 1980–1981: Studied by Voyager 1 and Voyager 2, which discovered new moons and mapped the ring structure in detail
  • 2004–2017: Orbited continuously by the Cassini spacecraft, which delivered the most detailed portrait of Saturn to date, including the Huygens probe’s landing on Titan
  • Present: Still being observed by the James Webb Space Telescope and Hubble, which continue to reveal new details about its atmosphere, rings, and moons

Not bad for a planet that’s essentially a ball of gas held together by its own gravity. Saturn has been visible to the naked eye since antiquity, but it took Galileo’s telescope in 1610 — and centuries of missions after — to actually understand what we were looking at.

Sources: NASA Science — Saturn, NASA Solar System Exploration — Saturn By the Numbers, NASA Space Place — All About Saturn