#2938: Local Group

XKCD comic, described below.
Transcript

[Two galaxies, positioned on the left and right sides of the panel, are each eating a single noodle of spaghetti, originating from a bowl of spaghetti in between them.]

[Left galaxy:] Sluuurp

[Right galaxy:] Sluuurp

[Caption below the panel:]

Astronomers have determined that the Milky Way and Andromeda are currently slurping up the same strand of cosmic spaghetti, suggesting that in 5 billion years they will likely kiss.

(Sourced from explainxkcd.com)

Title text:Cosmologists estimate the spaghetti strand to be about 200 septillion calories, though it could be higher depending on the nutritional value of dark matter.


ExplainOriginal