This descriptive study aims to identify the characteristics of scientific contents and related challenges in the daily local newspapers in the Sultanate of Oman. The study adopts the functional constructivism theory as a theoretical framework to explain its findings. To the best of the researcher's knowledge, no study has been conducted on the scientific contents of the daily Arabic newspapers in the Sultanate of Oman. The study sample consists of three daily local newspapers: Al-Watan, Oman daily, and Al-Shabiba. It investigates the scientific contents published on them during the period from January to December 2019 analyzing (36) issues, i.e. (12) issues of each newspaper. The study relies on the survey methodology and the content analysis form to investigate characteristics of scientific contents, and the unstructured interview to examine the challenges of scientific journalism in local newspapers by interviewing a sample of communicators in these newspapers. The study concluded several findings, the most important of which is that the area dedicated by sample newspapers to scientific contents reached (6.4%), which constituted a very modest percentage. Results revealed that the "social sciences" topics came first of the contents that were prioritized by sample newspapers at a percentage of (25.3%), followed by the "medical" topics at (18.8%), then the "health" topics at (11.3%), while topics related to "climate and weather conditions", "industry" and "energy" were the least of their concerns. As for methods of presentation of scientific content, results indicated that the method of "displaying information only" was at the forefront of other methods at a percentage of (72.8%), while the "local" coverage focus came first at a percentage of (57.7%), with no Gulf scientific topics addressed. Moreover, results showed that news was at the top of the journalistic genres list, at a percentage of (82.1%), with a clear weakness in using other genres. Results also pointed to a less interest in accentuation elements associating scientific topics such as drawings, graphics, backgrounds and frames. The study found a number of the challenges facing daily Omani Arabic newspapers with regard to preparing and publishing scientific contents, the most important of which is the absence of scientific departments and specialized journalists or specialized supplements and pages in the sample newspapers. Moreover, there was no specialized training in scientific journalism for communicators in the concerned departments. The results also د indicated different degrees of cooperation between the research and academic institutions with sample newspapers. Study recommendations suggested that Omani newspapers should establish departments for scientific journalism, dedicate pages and scientific supplements and appoint specialized scientific journalists to manage such pages and supplements. It also recommended to pay attention to train communicators on how to cover scientific topics, analyze research studies and benefit from scientific papers. In addition, the study highlighted the importance of establishing an academic educational path for scientific journalism in local universities and colleges.