The interesting thing about this punchline is that when I try to clear my mind and read it with fresh eyes, I get left with this feeling that I should have seen the punchline coming but on reflection, I didn’t. I don’t know if you guys have the same experience, but it would be a test of my ability to read these strips as a reader would, even while writing them.
The throwaway gag in this one is wondering what “LMFTO” means. It’s a corruption of LMFAO but implies that the alien who is speaking does not have a proper ass to laugh off. In my mind, the T stands for “tentacles.” Could be “tail,” though.
The art is from a public domain NASA photo of a galaxy, but I forget which one. I played with effects to get it as much like clip art as possible. But I bet some papers will have trouble printing it. Hope not.