I've always loved science, including astronomy, but even so I had a literal Saturn-moment while at university. The astronomy department's observatory had free public viewing on clear saturday nights. While it was very busy when Shoemaker-Levy 9 hit Jupiter, most Saturday nights were fairly quiet so you got a fair amount of viewing time. On one of my visits I had my first view of Saturn through a telescope, and a reasonably big telescope at that. In short, it didn't look real. It looked like someone was hanging a Saturn model in front of the telescope. Of course it was real, but Saturn mades quite an impression, even though I had seen Venus, Jupiter & its moons, and other objects previously through the same telescope.

Now that I finally have my own (decent) telescope. We had a good summer for Jupiter last year, and I'm looking forward to showing my kids Saturn soon.