Develop systems that use low-cost solar-thermal energy to help clean water produced by oil & gas extraction & other industrial activities.

Expand the utilization of non-traditional sources of water, ensure water security in the U.S. and improve the resilience of infrastructure.

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

This challenge is seeking new sustainable solutions to deter or prevent catalytic converter thefts.

Help NASA overcome challenges inherent to living on the moon.

Rio Tinto seeks economically-viable new technologies to increase titanium dioxide content in ilmenite ore from 32% to 50% or better.