World Solve

Removing debris may require technologies capable of approaching, manipulating, or disabling other spacecraft. The challenge is creating verification and trust mechanisms so debris removal does not become covert anti-satellite capability. 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.

Autonomous spacecraft may make split-second avoidance decisions using imperfect data and proprietary software. The unresolved problem is assigning responsibility, proving fault, and compensating affected parties across jurisdictions. The design must remain functional when standards, trade routes, data access, and diplomatic cooperation are unreliable. 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.

Autonomous spacecraft may make split-second avoidance decisions using imperfect data and proprietary software. The unresolved problem is assigning responsibility, proving fault, and compensating affected parties across jurisdictions. 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.

Formation flying for interferometry demands extreme precision. Advances in control theory and sensor technology are needed.

Millimeter-sized meteoroids travel at tens of kilometers per second and pose catastrophic puncture risks to satellites and spacecraft hulls. Ultra-sensitive impact sensors and wide-field detection arrays are needed.

Missions passing from the inner solar system to the deep outer cold face severe thermal swings that degrade instruments. Variable emissivity smart materials and active thermal fluid loops are needed.

Traditional star trackers struggle when solar glare or local dust plumes obstruct sensor fields during maneuvers. Pulsar-based navigation systems utilizing ultra-precise atomic X-ray timing signals are needed.

Chemical lithium-hydroxide canisters are consumable, heavy, and wasteful for multi-year missions. Algae photo-bioreactors capable of converting human exhaled CO2 directly into oxygen and edible protein 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.

Almost all current reusable rocket technology is built for missions close to Earth, while deep space missions still rely on expensive, largely disposable hardware. Extending reusability further out could reshape space exploration economics.

Cosmic radiation gradually damages electronics, and there's no way to send a repair technician to fix something millions of miles away. More radiation-hardy systems are essential for missions lasting a decade or more.

Even our fastest probes would take tens of thousands of years to reach the nearest star system. Without a breakthrough in propulsion, interstellar travel remains purely theoretical.