Soon-Yi?
[Spoilers, obviously]
Can someone explain to me what happened to Soon-Yi (the adopted daughter of Tae-ho)? At the end he was able to "communicate" with her via Kot-nim, but then we saw that she had "left orbit" (or something along those lines; I don't recall exactly). Next thing, the crew seems to be happily moving on with their lives. Does that mean she was lost forever never to be reunited? I don't get it. Thoughts?