World Solve

Localised gravity fluctuations caused by energy or structural load management can injure residents and damage property. The challenge is designing buildings and occupancy rules that prevent such failures or make them predictable and survivable without requiring constant monitoring.

Future missions beyond low Earth orbit will expose crews to radiation, isolation, altered gravity, communication delays, and limited emergency care. The open problem is developing autonomous health systems that remain safe under unknown conditions. The solution must work with limited capital, intermittent services, and local maintenance capacity. The research opportunity is to define measurable success criteria, test the approach in realistic settings, identify failure modes, and create a pathway from prototype to accountable deployment.

If individuals can alter gravity in their private environments, public areas must still enforce uniform conditions for safety and fairness. The challenge is preventing spillover effects, health disparities, and social stratification based on access to customized physical laws.

Cosmological data show the Universe’s expansion speeding up, yet we lack a clear physical mechanism beyond a simple cosmological constant. Precision surveys and alternative gravity theories could clarify whether dark energy is a new field or modified gravity.

General relativity and quantum field theory conflict at extreme densities, such as inside black holes and at the Big Bang. Progress in string theory, loop quantum gravity, and holographic dualities could lead to a consistent framework.

Alternative theories predict deviations that current experiments are only beginning to probe. More sensitive tabletop experiments are needed.

Deep flows and core structure are difficult to infer. Gravity and magnetic measurements from orbiters can improve models.

Astronauts lose up to 1-2% of bone mass per month in microgravity despite daily intensive physical exercise regimes. Artificial gravity habitats or gene-targeted therapeutics are needed to enable multi-year interstellar trips.

Next-generation telescopes and gigawatt-scale space solar power arrays are too large to fit in single rocket fairings. Highly coordinated multi-robot assembly systems operating in microgravity need to be developed and standardized.

Cephalad fluid shifts in microgravity increase intracranial pressure, leading to structural eye deformation and vision impairment. Non-invasive, flight-ready therapies or fluid-redistribution suits are urgently required.

3D-printing complex structural metal components in microgravity often results in porosity and micro-cracks. We need reliable thermal controls and melt-pool monitoring for zero-g metal and composite fabrication.

General relativity governs massive scale gravity while quantum mechanics governs atomic scales, but they break down together at black hole singularities. Developing a unified Theory of Quantum Gravity is the holy grail of theoretical physics.

Plants grown in space suffer from water-logging and oxygen starvation around roots due to absence of buoyancy-driven convection. Developing autonomous micro-fluidic aeration root systems is essential for growing fresh crops in space.

Medicines used on Earth lose potency rapidly on orbit, endangering astronauts on long multi-year Mars missions. Developing radiation-shielded drug formulations and long-shelf-life stabilizing active compounds is required.

Collecting samples from Venus or deep Martian canyons requires multi-stage rockets launching autonomously from foreign surfaces. Lightweight planetary ascent vehicles and automated orbital rendezvous systems must be built.

Spaceflight suppresses T-cell activity, making astronauts vulnerable to opportunistic infections during flight. Immunomodulatory counter-measures and rapid point-of-care diagnostics are needed for space habitats.

Lava tubes offer natural radiation shielding for habitats, but traditional wheeled rovers cannot enter steep vertical entrances. Tethered, legged, or flying drone swarms designed for dark micro-gravity caves are needed.

ZBLAN optical fibers produced in space exhibit far lower light attenuation than Earth-made fibers, but manufacturing defect rates remain high. Microgravity fluid dynamics and draw-tower controls must be perfected.

Mars (0.38g) and the Moon (0.16g) have partial gravity levels whose long-term impact on embryo development is completely unknown. Ground-based and orbital partial-gravity mammalian centrifuges are required.

Without gravity, liquid fuels float randomly inside tanks, causing air bubbles to enter fuel pumps during orbital refilling. Scalable fluid-settling systems and bladderless zero-g fuel transfer ports must be built.