Help sustain America’s reservoirs. We’re looking for ways to remove sedimentation that regularly accumulates in reservoirs.

Help astronauts go back to the Moon in 2024! NASA seeks new designs for a toilet that will work both in microgravity and lunar gravity.

This challenge is seeking your ideas for how to automate the inspection of scrap materials in a way that is quick, accurate, and objective.

Enhance the consumer bottle-opening experience by re-inventing the way our glass bottles and closures are designed.

Propose and build apps that advance DC in the areas of city mobility and the environment through the use of gigabit-speed internet.

Propose a system that can enhance and eventually replace the current animal telemetry data collection system.

Propose a method of measuring tire tread depth that is fast, accurate, and easy to implement.