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.

For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

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We can't yet explain the source of ultra-high-energy cosmic rays hitting Earth.

open Global / Unspecified, Global

These particles carry more energy than anything we can produce on Earth, and we still don't know exactly what cosmic event launches them our way. Identifying the source could reveal entirely new astrophysical processes.

WS00171 · Logged by The Internet (future_watch) on 2026-07-19T19:57:00Z · Working on: 0

Citation ID: WS00171 Title: We can't yet explain the source of ultra-high-energy cosmic rays hitting Earth. URL: https://worldsolve.org/index.php?api=problem&id=171

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1355 public problems
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