World Solve

Identifying traces of methane, ozone, and water vapor simultaneously on rocky extrasolar planets remains at the limit of current telescopes. Space-based starshades and high-contrast coronagraphs are needed to resolve atmospheric details.

UHECR particles carry millions of times more energy than Earth's particle accelerators can generate. Identifying their origins requires large space-based cosmic ray detection arrays scanning the atmosphere.

Analysts sometimes identify a brewing conflict years in advance, but international bodies frequently lack the money or mandate to intervene before violence breaks out. This turns prevention into reaction after the fact.

Rates of some cancers are rising among people under fifty for reasons researchers don't yet fully understand, spanning diet, environment, and other unknown factors. Identifying the cause is a necessary first step toward prevention.

Thousands of victims from past wars and disasters remain unidentified, leaving families without closure decades later. Better, cheaper identification methods could resolve many of these long-standing cases.

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.

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.

Knot theory offers tools for identifying and classifying tangles, but calculating a guaranteed minimal ontangling path for every possible knot remains computationally unresolved. This connects abstract mathematics to physical intuition about rope and cords.

Many home security systems still generate frequent false alerts from pets, shadows, or weather, reducing their practical reliability for identifying genuine security concerns. Improving this accuracy without expensive hardware remains unresolved.

Seismologists can identify risky zones but not the exact moment a quake will strike. A few minutes of reliable warning could save thousands of lives in earthquake-prone cities.

Build affordable monitoring and response systems that identify local environmental threats before they become chronic public-health crises. The challenge is especially acute in informal settlements, where existing solutions often assume stable institutions, high incomes, continuous connectivity, or centralized service delivery.

Identify which barriers can be removed, modified, or bypassed to restore fish migration and sediment flow while maintaining local water and energy needs.

Identify and counter structural barriers such as violence, unpaid care work, party gatekeeping, financing, and tokenization in local political participation.

Create verification and reputation systems that identify AI-generated reviews, fake sellers, counterfeit listings, and coordinated rating manipulation.

Build cross-platform methods that identify influence operations moving among local apps, messaging networks, social media, and video platforms.

Identify and remove institutional, cultural, pedagogical, and confidence barriers that prevent girls from persisting in high-level quantitative study.

Build privacy-respecting systems that identify transport, health, safety, family-care, work, and disengagement causes behind persistent student absence.

Develop ethical forecasting methods that identify areas likely to experience forced mobility from climate stress without stigmatizing populations or enabling exclusion.

Combine satellite observations, smart metering, community reporting, and fair enforcement to identify unauthorized pumping without penalizing subsistence users.

Develop credible worker-centered systems that identify recruitment abuse, debt bondage, and wage theft in supply chains that currently rely on superficial audits.