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.
Huygens discovered Titan, and Cassini discovered a few more of Saturn's moons. The mission was commonly called Saturn Orbiter Titan Probe (SOTP) during gestation, both as a Mariner Mark II mission and generically.assini is the fourth space probe to visit Saturn and the first to enter orbit, and its mission is ongoing as of 2015. It has studied the planet and its many natural satellites since arriving there in 2004. Development started in the 1980s. Its design includes a Saturn orbiter, and a lander for the moon Titan.