#1633: Possible Undiscovered Planets

XKCD comic, described below.
Transcript

((There is a flow chart. The first bubble has two arrows, pointing at bubbles 2 and 3.)) Bubble 1: "This seems to be taking longer than usual-" Bubble 2: "- Try reloading Gmail if the problem persists." Bubble 3: "- Maybe we should just go to bed."

Title text:Superman lies near the bird/plane boundary over a range of distances, which explains the confusion.


ExplainOriginal