Olive feared she might vomit which would be a really dumb and dangerous thing to do since her mouth was sealed off (along with the rest of her skin) against the vacuum of space. Basically, her insides had nowhere to go. She swallowed hard. Only little kids got space sick and she wasn’t a little kid, she was fourteen. As soon as the hatch had opened and she went rushing out into the empty, Olive’s skin crystalized—just like it was supposed to. 

Characterized by its child’s-eye-view and a whimsical perspective….this sort of genuinely clever alternative is anything but normal. —Brian Lowry / Variety