"Till A' the Seas" by H.P. Lovecraft and Robert H. Barlow

This story feels like this could have been an episode of The Twilight Zone! Indeed, I am reminded specifically of the episode "Time Enough at Last", except darker.

The author contemplates the earth moving closer in to the sun, but this was written a century ago - today we can reframe this story in the context of the sun, having reached it red giant stage, expanding out towards the earth. The result is the same, but it would better match up with current scientific understanding.

The follow along: https://www.hplovecraft.com/writings/texts/fiction/tas.aspx