I wrote on Boing Boing about how astronauts poop in space (it takes a lot training and technology), and about astronaut Mike Massimino's book Moonshot, about perseverance and teamwork.

I liked a commenter's take: the pooping part was the least interesting part of the fascinating interview. I agree! But I needed a clickbait headline!
https://boingboing.net/2023/12/16/an-astronaut-explains-pooping-in-space-and-on-the-moon.html