iirc 4 of the ~9 endings (depends on how you count them since there are a few variations of each) involve space travel - including the 2 worst ones.
also you should try for some more endings, the “best” ending doesn’t go to space.
edit: no wait, there’s way more than 9 if i count the romance choices… ummm okay 2 of the main four-ish endings???
That makes sense I guess. Like it’s never going to hit as hard the second time.