heat captured while passing through the Heat Exchangers is directed to be expelled through the Heat Rejection System Radiators (HRSRs). The radiators are rotated by the Thermal Rotary Radiator Joint (TRRJ) which continually rotates the radiator wing for optimum cooling. References See also International Space Station (ISS) Integrated Truss Structure (ITS) Orbital Replacement Units (ORUs) Electrical system of the International Space Station Environmental Control and Life Support System (ECLSS) Integrated Cargo Carrier (ICCs) External Stowage Platform (ESPs) ExPRESS Logistics Carrier (ELCs) Scientific research on the ISS Components of the International Space Station