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.

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We do not fully understand the physical state of matter inside neutron star cores.

open Global / Unspecified, Global

Matter inside neutron stars is crushed beyond atomic densities into unknown states like quark-gluon plasma. Multi-messenger astronomy combining X-ray observatories and gravitational wave detectors is needed to probe these conditions.

matter inside neutron fully understand science-space

WS02134 · Logged by Ian Patel on 2026-07-22T08:00:00Z · Horizon: 2032 · Working on: 0

Citation ID: WS02134 Title: We do not fully understand the physical state of matter inside neutron star cores. URL: https://worldsolve.org/index.php?api=problem&id=2134

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2165 public problems
2165 open challenges
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