WATER ABUNDANCE XPRIZE: Creating water from thin air

Space Poop Challenge: Competition to source a system that routes and collects human waste away from the body, hands-free, for fully suited astronauts.

Infrastructure Vision 2050 Challenge: Create a system of transportation for the United States that will meet the needs of all users in 2050 and beyond.

F3 Fish-Free Feed Challenge: To encourage innovation of alternative ingredients for aquafeeds, improve the industry's sustainability, and reduce pressure on fisheries.