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2. In Depth | Saturn – NASA Solar System Exploration

   solarsystem.nasa.gov/planets/saturn/in-depth.amp

   Saturn is the sixth planet from the Sun and the second-largest planet in our solar system. Like fellow gas giant Jupiter, Saturn is a massive ball made mostly of hydrogen and helium. Saturn is not the only planet to have rings, but none are as spectacular or as complex as Saturn's.

3. What is a Planet? | Planets – NASA Solar System Exploration

   solarsystem.nasa.gov/planets/in-depth.amp

   A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.

4. In Depth | Our Solar System – NASA Solar System Exploration

   solarsystem.nasa.gov/solar-system/our-solar-system/in-depth.amp

   Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.

5. In Depth | Titan – NASA Solar System Exploration

   solarsystem.nasa.gov/moons/saturn-moons/titan/in-depth.amp

   Saturn's largest moon, Titan, is an icy world whose surface is completely obscured by a golden hazy atmosphere. Titan is the second largest moon in our solar system. Only Jupiter's moon Ganymede is larger, by just 2 percent.

6. 10 Need-to-Know Things About Saturn - NASA Solar System...

   solarsystem.nasa.gov/module/92

   Saturn is the sixth planet from our Sun (a star) and orbits at a distance of about 886 million miles (1.4 billion kilometers) from the Sun.

7. Saturn | Science – NASA Solar System Exploration

   solarsystem.nasa.gov/missions/cassini-hds/science/saturn

   Saturn is nearly 10 times farther from the sun than Earth and takes far longer to orbit the sun – about 29 Earth years. Saturn’s axis of rotation is tilted like Earth’s, and so it too has seasons, but the longer year produces seasons that last more than seven Earth years each.

8. In Depth | Uranus – NASA Solar System Exploration

   solarsystem.nasa.gov/planets/uranus/in-depth.amp

   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.

9. In Depth | Neptune – NASA Solar System Exploration

   solarsystem.nasa.gov/planets/neptune/in-depth.amp

   Dark, cold, and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye.

10. Titan | Science – NASA Solar System Exploration

    solarsystem.nasa.gov/missions/cassini-hds/science/titan

    The colorful globe of Saturn's largest moon, Titan, passes in front of the planet and its rings in this true color snapshot from NASA's Cassini spacecraft.

11. In Depth | Jupiter – NASA Solar System Exploration

    solarsystem.nasa.gov/planets/jupiter/in-depth.amp

    Jupiter is the fifth planet from our Sun and is, by far, the largest planet in the solar system – more than twice as massive as all the other planets combined. Jupiter's stripes and swirls are actually cold, windy clouds of ammonia and water, floating in an atmosphere of hydrogen and helium.