Daryl Lindsey
Updated November 30, 2016

Listen up, we’re not kidding about this. NASA needs your help solving a poop problem.

In NASA’s Space Poop Challenge (again, not kidding) scientists explain that space suits are designed to protect the astronauts and can be worn for up to six days if their spacecraft or space station were to become unlivable.

If that were to happen, though, the astronauts would need a waste system more hygienic and efficient than diapers.

Contestants can submit their ideas until December 20th, and NASA will announce the winners on January 31st. NASA plans to implement the winning design over the next three to four years.