I also have a theory in regards to 24 hour sunlight in the south pole.

I have a theory there's another sun or light source that we can't see.

Still the sub 0 temps with direct sunlight for 24 hours don't make sense.

But imagine if there's another earth pond beyond antarctica with another sun going over it.

It's getting sunlight from 2 sources.

But that would explain the sub 0 temps because while the light is reaching them, the heat is much further away.