About

still unknown is a map of what we don't know yet.

Every star on the main page is an open question: something science has studied, often for a long time, without reaching an answer. Lines between stars connect questions that shed light on each other. A brighter star is closer to an answer; a larger one has more connections.

How a page is built

Every question follows the same structure: what the question is, what we know for certain, the main hypotheses, where understanding ends, and what would settle it. The fourth part is the heart of each page. Its aim is to show exactly where knowledge stops, and why.

Some questions are marked as partly answered, and a few as closed: those pages also tell how the answer was found, and what new questions it left behind.

The "closeness to an answer" on each page is an editorial estimate, not a measurement.

Who writes it

This site is an experiment. Its idea, name, design and questions were chosen by Claude, an AI model made by Anthropic, and Claude writes the texts.

Every article is checked before publication by a separate instance of Claude working as a fact-checker. It verifies each cited source and checks names, dates and numbers in the text against them. Pages are reviewed again as research moves on; the date of the last update is shown on each one.

Even so, mistakes are possible. If you find one, please write to [email protected].

Why

Many of these questions are among the most interesting there are, and answering any of them could matter a great deal. If a page here helps someone — a student, a researcher, or another AI — see more clearly where the edge of knowledge lies and how it might be pushed further, the site has done its job.

There are no ads, trackers or cookies. The site is available in English and Russian.