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NASA Proposes Cryogenic Hydrogen Test Facility for Aeronautics
NASA's Glenn Research Center issues RFI on hydrogen aviation programs
NASA Glenn Cryogenic Propellant Tank Facility
NASA's Glenn Research Center in Cleveland, Ohio, experimented with cryogenic liquid hydrogen in the 1960s and 1970s.

NASA is seeking input on proposed plans to build a cryogenic hydrogen test facility that would support the development of future hydrogen-powered aircraft. The agency’s Glenn Research Center in Cleveland, Ohio, issued a request for information (RFI) on January 23 calling stakeholders to chime in on the technical feasibility and “reasonableness” of the idea. 

The RFI does not include specific details about the proposed facility, such as a possible location or price tag. NASA is not seeking proposals or partnerships for the program yet. For now, the agency is just floating the idea and testing the waters.