I was video calling with a scientist yesterday who works with catalysts, and he mentioned the theory that the iridium on Earth arrived from space in a meteorite - possibly the same one that wiped out the dinosaurs.

So I stood up to show him my new ESA sweatshirt - Dinosaurs Didn't Have a Space Agency!

🦕 ☄️ 🦖

😃

https://physicsworld.com/a/iridium-in-undersea-crater-confirms-asteroid-wiped-out-the-dinosaurs/