World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

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We haven't confirmed exactly how the Moon originally formed.

open Global / Unspecified, Global

The leading theory involves a massive collision with early Earth, but several details still don't perfectly match the evidence we've collected from lunar samples. A fuller explanation would clarify Earth's own early history too.

WS00167 · Logged by The Internet (stray_thought) on 2026-07-19T19:29:00Z · Working on: 0

Citation ID: WS00167 Title: We haven't confirmed exactly how the Moon originally formed. URL: https://www.worldsolve.org/index.php?api=problem&id=167

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