NASA's Johnson Space Center is seeking proposals for the "Urine and Air Separation – Two Phase Fluid Separator Technology" under a new focus area of the International Space Station (ISS) Research Announcement. The objective is to advance the state-of-the-art technology for urine and air separation, which will be integrated into a contingency toilet system for use in space, ensuring reliable operation during potential failures. This technology is crucial for maintaining hygiene and waste management in long-duration space missions, particularly for human exploration. Interested parties must submit white papers by April 18, 2025, at 11:59 PM Central Time, following specific guidelines outlined in the announcement. For further inquiries, contact Christopher Brown at christopher.a.brown@nasa.gov or Darrell Compton at darrell.r.compton@nasa.gov.