"The sky’s green."

"Something went wrong in the terraforming," Mal answers. "Planet still supports life, the Alliance don't care the sky's the wrong color."

"I sorta like it, actually. Gives it character."

"This planet has more than enough character for me, Kaylee."

Kaylee knows that when Mal talks like that he don't mean it. It's just when he's worried about a job, he don't think about nothing else. "Come on, Cap'n. How often you see a green sky? You gotta slow down." She kisses him, gets his attention.

“I ain’t lookin’ at no sky.” He looks in her eyes, instead.