The article is devoted to the features of forming the profession-oriented English language communicative competence of Russian cosmonauts and other specialists involved in the International space flight program by means of electronic teaching and methodical complex developed on the basis of Moodle (Modular Object-Oriented Dynamic Learning Environment) educational platform using modern Internet technologies and project-based learning. This complex ensures implementation of the authors’ new teaching model taking into account both general and andragogical methodological principles of educational materials development for adults. Keywords: Cosmonaut English language training, project activities, profession-oriented language training, Gagarin Cosmonaut Training Centre, International Space Station crew intercultural communication, Modular Object-Oriented Dynamic Learning Environment (Moodle).