Short answers, pulled from the story.
Saturn is the sixth planet from the Sun and the second largest in the Solar System. It possesses only 95 times Earth's mass despite having an average radius about 9 times that of Earth, making it less dense than water by approximately 30%. No other planet in our solar system shares this property.
Christiaan Huygens saw the rings for the first time in 1655 using greater telescopic magnification. Galileo had previously mistaken the rings for two moons on either side of the planet in 1610. Giovanni Domenico Cassini identified the gap now known as the Cassini Division in 1675.
One theory suggests they formed simultaneously with Saturn 4.6 billion years ago. Another MIT research team proposes they are much younger, created only 100 million years ago. This second hypothesis posits the rings are remnants of a destroyed moon named Chrysalis.
Titan is the largest moon and comprises more than 90% of the mass orbiting Saturn. Confirmation that Titan has a thick atmosphere came in 1944 through research conducted during the early 20th century. On the 6th of June 2013, scientists detected polycyclic aromatic hydrocarbons in Titan's upper atmosphere.
On the 15th of September 2017, Cassini performed its Grand Finale by passing through gaps between Saturn and its inner rings. Atmospheric entry ended the mission after more than a decade of exploration. The spacecraft entered orbit around Saturn on the 1st of July 2004.