This puzzle isn't strictly science-related, though there is a mathematical fascination with this topic. I don't want to give anything else away, so all I'll say is this: it's a puzzle within a puzzle, about another puzzle.
Bad news: there's no online version this week. (Extra bad news for 2026 me: I have to re-convert the PDF from a PNG to change the name on it. Why the hell does Crossfire use PNG exports???)
Good news: that means an extra interesting theme...