Create a lightweight, flexible, long service-life wheel and tire to help rovers navigate the harsh environment of the Moon

Innovative and sustainable methods for enhancing the cutting efficiency and reducing the processing costs of dimensional lumber production.

Design and build a safe, portable, robust, autonomy-enabled Emergency Response Flyer.

Contribute to raise the prize purse! Help sustain the US weather system. Protect lives, strengthen early warnings, together. Every $1 helps.

Holy Grail "a cup that overflows" 1 Billion+ Portable Personal Air to Water machines rolled out in 10 - 25 years

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

Enhance ventilation and keep out mosquitoes as an improved version of the ‘air cavities’ solution from the 2021 Habitat Challenge.

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

Give a tiny bot a new set of tools to explore the moon. Share your ideas for a mini payload to make lunar exploration more effective.

To explore the daunting surface of Venus, NASA needs an innovative obstacle avoidance sensor for its mechanical clockwork rover.