You can always do a lot of fun physics in space, but you can only eat the apples you bring with you from Earth. How much food would we need to bring with us for longer trips? A tiny fraction, it turns out - if we crack metabolic depression in humans.
In space, biostasis on demand saves lives (and apples!)
Physics corner with Captain Jack. He'll be leaving in a few days on Crew-12 so we are trying to learn as much as we can before he goes. Today we did spacewalk prep together and this weekend we ate our last apple.