World Solve

Living without normal gravity weakens astronauts' bones and muscles over time. Practical, affordable ways to simulate gravity in space stations remain mostly untested at scale.

Some outer moons hide liquid oceans beneath thick ice, and possibly conditions that could support life. Getting real data from beneath that ice remains a major unsolved engineering and mission challenge.

Solar storms and radiation slowly degrade satellite electronics, shortening their working life and risking sudden failures. Better shielding could extend satellite lifespans and reduce costly replacements.

Detecting gravitational waves was a breakthrough, but modeling exactly what happens during these violent mergers pushes our computing power and physics equations to their limits.

Fast radio bursts flash briefly and then vanish, and we still don't fully understand what causes them. Some theories point to exotic stars, but no explanation is fully confirmed yet.

Every kilogram of fuel launched from Earth adds enormous cost to a mission. Producing fuel on-site from ice or soil could make deep space missions dramatically more affordable.

Low gravity and different light conditions slow plant growth and change nutrient uptake in ways we don't fully understand yet. Solving this is essential for any long-duration space mission that needs fresh food.

This mismatch is part of the evidence for dark matter, but the details of how it shapes galaxy rotation are still not fully worked out. A better model would sharpen our understanding of galaxy formation.

Reusable rockets have cut costs, but they still require significant repair and inspection after each landing. True rapid reusability, like an airplane, would make space travel dramatically cheaper.

We've confirmed thousands of exoplanets, but identifying which ones could truly support life requires data we mostly don't have yet. A clearer count would refocus the search for life beyond Earth.

Current spacesuits are bulky, tiring, and limit fine motor movement, making long spacewalks physically exhausting. A more agile suit would make space construction and repair work far more practical.

A severe solar storm could knock out satellites, GPS, and even electrical grids with little warning. Better prediction would give critical infrastructure time to prepare or shut down safely.

Earth's magnetic field protects us from solar radiation, but the dynamo process that generates it deep underground is still only partly understood. This matters for predicting how long that protection will last.

Right now we can only detect exoplanets indirectly, through shadows and wobbles in starlight. Direct imaging would let us actually study alien landscapes and atmospheres instead of just inferring their existence.

We understand the general physics of dying stars, but the precise trigger moment inside a collapsing star remains difficult to observe and model. Solving this would sharpen predictions about stellar life cycles across the universe.

Every lunar mission so far has been short-term, relying entirely on supplies brought from Earth. A base that grows its own food, recycles its own water, and generates its own power would prove long-term space settlement is possible.

If P equaled NP, countless hard problems in logistics, cryptography, and optimization could be solved efficiently, but most computer scientists suspect they can't. This remains the most famous open question in computer science.

This conjecture about the zeros of a specific complex function would, if proven, tighten our understanding of how primes are distributed among all integers. It's considered one of the most important unsolved problems in mathematics.

Gödel's incompleteness theorems already showed some truths escape any fixed formal system, but the full boundary between provable and unprovable truths remains an active area of exploration. This shapes how we understand the limits of formal reasoning itself.

Many Diophantine equations, which ask for whole-number solutions, resist any general method for predicting how many solutions exist. Solving specific cases has taken decades and earned major mathematical prizes.