This document presents the changes belonging to the published article. The study aimed to examine the opinions of the instructors who work at GUHEM (Gökmen Space and Aviation Training Center) on the exhibition's content, how the exhibition spaces contribute to science education, especially astronomy and aviation, and the types of visitors who frequently visit the center. Nine instructors from GUHEM's science centers participated in the study. Data were gathered using the "Instructor Opinion Form," with nine open-ended questions. The data elicited from these questions were subjected to content analysis. The findings showed that children aged 6 to 11 made up the majority of visitors; the fascinating exhibition areas focused on the Solar System and planets and interactive workshops with space and aviation themes, like those involving paper airplane construction and rocket competition, were very popular. In terms of the contribution of this center to science education, it was found that the GUHEM exhibitions played an active role in teaching the solar system, planets, and pressure. Although astronomy is the discipline with which the exhibition areas are most closely associated, it can also be linked to other disciplines like astrobiology, mathematics, and aviation. Instructors shared their worries that they won't be able to meet visitors' expectations and occasionally struggle to understand the subject during activities held at GUHEM. These findings led to the opinion that GUHEM and other science centers will function more effectively if schools and science centers collaborate more, the curriculum and exhibition content are improved, and the instructors receive professional assistance from academicians who are subject-matter experts.