I would guess that a capsule in vacuum is not as simply to heat up or cool down as a room in a building on earth. One side is getting full blast sun radiation, the other side is radiating into the near absolute zero background. Is the capsule rotating? How fast? Now they are moving towards a full moon they are being irradiated from behind, on the way back it will be mostly from the front. The temperature control is probably better managed from Earth, where they can better monitor the numerous (I guess) temperature sensors. I hope they don’t use too much AI.
I wonder whether the temperature is set on the low side, so they don’t sweat and smell so much, or on the higher side, so they can dress more casually.
They had the same shit problem with the shuttle, they should have solved it by now!
Why not keep the waste inside? Why overengineer everything?