NASA's Johnson Space Center is soliciting proposals for Private Astronaut Missions (PAMs) 5 and 6, which will provide flight opportunities to the International Space Station (ISS) between May 2026 and mid-2027. The missions will accommodate a maximum of four private astronauts for a docked duration not exceeding 14 days, with specific restrictions on mission activities such as Extravehicular Activities (EVAs) and operation of ISS Robotic Systems. This initiative is part of NASA's broader strategy to commercialize Low Earth Orbit (LEO) and requires proposals to adhere to guidelines outlined in the NASA Research Announcement (NRA) Focus Area 4A. Interested parties must submit their proposals by May 30, 2025, at 4:00 PM Central Daylight Time, and can direct inquiries to Ashley Chaves or Elizabeth Kosobud via email.