Here are some essential facts about Saturn to get you ready for the big event. On September 15, scientists will intentionally crash the Cassini spacecraft into Saturn.

Saturn's rings extend up to 175,000 miles (282,000 km) from the planet. However, they are very thin: The main rings have a height of only 30 feet (10 m), on average, according to NASA.

Facts about Saturn's rings, moons and more. The sixth planet from the sun has spectacular rings and dozens of moons, including one that scientists find especially intriguing.

SATURN is notably the most unique among the planets – adorned with thousands of beautiful ringlets. But how many moons does the planet have? And what else should we know about this fascinatin… ...

Top five facts about Saturn's moon Enceladus. Published. 14 April 2017. Image source, PA. Image caption, Enceladus, one of Saturn's moons, could hold alien life, say Nasa scientists.

NASA's incredible Saturn V rocket propelled dozens of humans toward Earth's moon. The rocket's first flight, for the Apollo 4 mission, took place 50 years ago, on Nov. 9, 1967.