Are Saturn's rings 100 million or 4.5 billion years old? Cassini's 13 years of data, Enceladus plumes, Titan's methane lakes, and the biggest Saturn mysteries still open.
Cassini-Huygens: 20 years, 293 Saturn orbits, Titan's methane lakes, Enceladus's ocean plumes, and the 2017 Grand Finale plunge that redefined planetary science.
NASA's Dragonfly launches in 2028 and arrives at Saturn's moon Titan in 2034 — a nuclear-powered drone hunting prebiotic chemistry across methane lakes and dune fields.