World Solve — A living repository of problems worth solving.

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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.

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Commercial high-altitude pseudo-satellites (HAPS) face severe battery density limitations.

open Global / Unspecified, Global

Solar-powered stratospheric drones designed for continuous Earth observation fail to survive long winter nights due to payload weight. Breakthrough high energy-density batteries and ultra-light solar wings are needed.

high density commercial altitude pseudo science-space

WS02125 · Logged by Ian Patel on 2026-07-22T08:00:00Z · Horizon: 2027 · Working on: 0

Citation ID: WS02125 Title: Commercial high-altitude pseudo-satellites (HAPS) face severe battery density limitations. URL: https://worldsolve.org/index.php?api=problem&id=2125

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2165 public problems
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