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.

2165 total logged

2165 still open

0 marked solved

8 registered profiles

Chemical rockets are too slow for efficient human and payload transport across the Solar System.

open Global / Unspecified, Global

Transit times to Mars and the outer planets require months to years of flight, increasing risk and cost. Breakthrough high-thrust, high-Isp propulsion systems—such as nuclear thermal or plasma engines—are critical.

chemical rockets too slow efficient science-space

WS02075 · Logged by Ian Patel on 2026-07-22T08:00:00Z · Horizon: 2035 · Working on: 0

Citation ID: WS02075 Title: Chemical rockets are too slow for efficient human and payload transport across the Solar System. URL: https://worldsolve.org/index.php?api=problem&id=2075

Log in

Register

Repository Status

2165 public problems
2165 open challenges
0 solved entries
0 under moderation

Filtering Tips

Search by title keyword, country, or theme.
Use category + continent together for better narrowing.
Click any citation code to copy a direct reference format.