NASA needs a lot of things, but I never would have thought of this as one of them: apparently, NASA needs urine. It's okay, go back and read that again. It's not a typo.
Apparently Hamilton Sundstrand, who is working on the toilet system for the currently-in-development Orion launch system, needs urine in order to test their plumbing system and work on urine acidity issues. From July 21 to July 31, the company needs about 8 gallons of pee each day—even on weekends—in order to test the system.
But don't start bottling up your pee to send to them... the company is seeking contributions from employees at the Johnson Space Center in Houston. But if you do work there, I encourage you to go do your part by peeing for the future of technology.