Saturday, December 22, 2018

Remember Cassini?

Cassini (click here) was one of the most ambitious efforts ever mounted in planetary exploration. A joint endeavor of NASA, ESA (the European Space Agency) and the Italian space agency (ASI), Cassini was a sophisticated robotic spacecraft sent to study Saturn and its complex system of rings and moons in unprecedented detail.
Cassini carried a probe called Huygens to the Saturn system. The probe, which was built by ESA, parachuted to the surface of Saturn’s largest moon, Titan, in January 2005—the most distant landing to date in our solar system. Huygens returned spectacular images and other science results during a two-and-a-half-hour descent through Titan’s hazy atmosphere, before coming to rest amid rounded cobbles of ice on a floodplain damp with liquid methane.
Cassini completed its initial four-year mission in June 2008 and earned two mission extensions that enabled the team to delve even deeper into Saturn’s mysteries. Key discoveries during its 13 years at Saturn included a global ocean with strong indications of hydrothermal activity within Enceladus, and liquid methane seas on Titan. The mission ended on Sept. 15, 2018....

I was a bit surprised assessment from the Cassini probe wasn't included in this study of Saturn's rings. There is no clear assessment as to where the rings of Saturn originated. What I found curious is there is no mention of Saturn's gravity and whether it plays a part in pulling in space particles that ultimately become a part of Saturn's ring system.