World Solve

Detecting a planet in a habitable zone is only a first step, and current tools can't yet confirm whether conditions there truly support advanced life. Refining this picture would sharpen the search for life beyond Earth.

A large enough solar storm could damage transformers and electronics across entire continents, and current models can't precisely predict which systems would fail. Better modeling could guide smarter infrastructure protection investment.

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.

Evidence suggests Mars once had liquid water, a key ingredient for life, but no mission has yet found conclusive proof of past or present microbes. Answering this remains one of planetary science's biggest open questions.

Precious samples brought back from the Moon or asteroids need to remain scientifically useful for generations of future researchers. Long-term sample preservation technology hasn't fully caught up with mission ambitions.

Ocean currents regulate weather and temperature worldwide, and small changes could have outsized global effects. Current climate models still can't predict these shifts with the precision policymakers need.

Astronauts on extended missions lose bone density and muscle mass faster than doctors can fully explain or prevent. Understanding this better is essential before any mission lasting years, like a trip to Mars.

Thousands of dead satellites and fragments now circle the planet, and a single collision can create thousands more pieces of debris. Left unmanaged, this could eventually make some orbits too dangerous to use safely.

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.

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.

This period, known as cosmic inflation, is widely accepted as a concept but the exact physical mechanism driving it remains unproven. Confirming it would close a major gap in our understanding of the universe's first moments.

Larger asteroids are easier to spot years ahead, but smaller ones capable of serious regional damage often go undetected until they're very close. Expanding detection capability remains a quiet but serious safety gap.

The leading theory involves a massive collision with early Earth, but several details still don't perfectly match the evidence we've collected from lunar samples. A fuller explanation would clarify Earth's own early history too.

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.