Is there an in-universe explanation for how the Discworld has an atmosphere?

And let’s not forget the contributions of Billy Joel.

via The Name Grapher

[Monkey’s paw curls a finger]

“Your wish is… granted…”

That’s such an oddly specific north to south multi-state swath of No Data that I’d easily believe there was something going on with that particular longitude, even though that’s a completely insane thing to imagine.

Star Trek TNG