I learned Saturn's rings are only 100 million years old and it blew my mind

I was reading a NASA article about the Cassini probe's final data dump (you know, the "Grand Finale" stuff) and it said the rings are probably only 100 to 200 million years old. That means dinosaurs never saw them. Like, T-Rex was looking up at a totally different Saturn. How wild is that? Makes you wonder what else we assume is ancient but is actually pretty new in cosmic terms. Anyone else get tripped up by how young certain things in space really are?

2 comments

2 Comments

ivangrant5d agoTop Commenter

Holy crap, wait, the dinosaurs never saw those rings? That just hit me way harder than I expected. I always figured they were as old as the planet itself, like a permanent fixture. But thinking about a T-Rex looking at a plain, ringless Saturn completely changes my whole mental picture of the prehistoric world. It makes the rings feel almost temporary, like a flash in the pan compared to the age of the planet. Honestly, that one detail makes the whole thing way more mind-blowing for me than just a simple trivia fact.

reese_lane295d ago

Hang on, is it really that deep? The rings are made of ice and rock chunks that were probably a shattered moon or comet. So yeah, they're "young" for space but that's still like a hundred million years. That's a LONG time. Dinosaurs not seeing them is just a fun trivia fact, not some mind blowing revelation. The universe is always changing stuff, so this is just one more thing on the list. I'm more tripped up by how we even know the rings are that young in the first place.