The weight of an aircraft is distributed all along the aircraft. The fuselage, along with the passengers and cargo, contribute a significant portion of the weight of an aircraft. The center of gravity of the aircraft is the average location of the weight and it is usually located inside the fuselage.
Saturn's rings were discovered in 1610 by Galileo Galilei, although he did not see enough detail to know what they were. In 2004, the Cassini spacecraft began capturing unprecedented images of Saturn's atmosphere and the complex structure of its rings and moons. It is hypothesized that the rings formed when Saturn swallowed one of its moons.
Saturn's Ring System. In 1610 Galileo Galilei turned his primitive telescope to the heavens and was astonished to observe a bright star flanked by two dimmer ones. What Galileo had discovered was a strange new world, a planet that was to become one of the wonders of the solar system, and to be named Saturn. Saturn's beauty comes from its magnificent rings that Galileo described as handles or large moons on either side of the planet.