Аннотация:The paper considers space thermal radiation of high-temperature shock waves and jets. Special experimental data for high-temperature flows and shock waves are presented. The luminescence of shock waves and radiation equilibrium of high-temperature jets, expiring from the aviation and rocket engine nozzles, are demonstrated. The effects of entropy growth, following from the law of energy conservation are analyzed and relationship of the entropy growth with total pressure losses in the tasks of aerophysics is shown.