Support NASA's efforts to explore the solar system. This Challenge seeks solutions to distribute, store and manage power in space.

Support NASA's Phase 2 efforts to explore the solar system. This Challenge seeks solutions to transmit and store power in space.

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.

Encourage the development of new ideas to cut the costs, timelines, and risks associated with small hydropower foundation development.

The American-Made Solar Prize is a $3 million prize competition designed to accelerate and sustain American solar innovation.

Designing 21st-century personal vehicles for people with disabilities.

Help us find a solution that can economically upgrade end of life steel scrap to high-quality feedstock with low copper contamination

Reimagining protective face masks used to prevent the spread of COVID-19 by making them comfortable, functional, accessible, and stylish.