The paper presents the results of the research conducted on the extensive corpus of press material. The purpose of the research was to show the frequency of references to the American scientific sources in the Polish press, specifically in popular science articles published in the weekly and daily papers. The analysis covered the period of 1975–2005 (and also the year 2015). The frequency of references to U.S. sources has been contrasted with the results on references to other countries (Poland, the former USSR, and Russia, in particular), as well as with the bibliographic data on the sum of citations of academic papers in individual countries. The research was carried out using quantitative methods (content analysis, bibliographic analysis of citations). The obtained results confirm the preference of the Polish popular science discourse for the sources originating from the Western culture, especially from the United States.