NASA Transition Authorization Act of 2024

This bill authorizes $25.48 billion in funding for NASA for fiscal year 2025, directing the agency to maintain continuous human presence in low-Earth orbit through a transition from the International Space Station to commercial space stations. It requires NASA to develop human-rated lunar landing capabilities for the Artemis program, continue development of the Space Launch System and Orion spacecraft, and establish a Commercial Low-Earth Orbit Development Program to procure services from U.S. commercial providers. The bill mandates a managed transition from the ISS to commercial destinations by 2030, with specific requirements for maintaining ISS operations until commercial alternatives are ready and for conducting in-space testing of advanced spacesuit capabilities. It also includes provisions to support lunar exploration, maintain a balanced science portfolio, and strengthen NASA's role in commercial space activities.