Citizen science engages the general public in scientific research, providing opportunities to enhance scientific literacy and inquiry skills. This study aims to explore how participation in the ‘Mission Galaxy’ citizen science project affects high school students' attitudes toward astronomy and science, the development of their scientific inquiry skills, and strategies to sustain their interest and engagement in citizen science activities. From a methodological perspective, a one-group pretest-posttest design was applied to investigate changes in students’ attitudes and skills. A total of 115 high school students participated in the study. Before and after participation, students completed a survey measuring their attitudes toward astronomy and science. Additionally, qualitative data were collected through semi-open questionnaire and interviews to analyze students’ experiences and perceptions. After participating in the citizen science project, students showed significant improvement in their confidence in learning astronomy (p=0.003) and their overall perception of science (p=0.018). Among scientific inquiry skills, observation (31%) and classification (25.4%) showed the most significant improvement, followed by inference (14.1%). In order to ensure students’ continued participation, it was confirmed that interface design and feedback system construction that stimulate participants’ interest and motivation are necessary. The results of this study provide important implications for exploring the meaning of educational use of citizen science projects and ways to induce continuous participation.

군산 3.5 만세운동은 전북지역 최초의 독립 만세운동으로써 다른 지역 만세운동을 촉발시키는 계기가 되었다. 당시 미국남장로회는 군산, 전주, 익산에 기독교 학교를 세웠는데 이들 지역의 만세운동에는 이 학교의 학생들이 그 중심에 있었다. 그 대표적인 사례가 군산영명학 교이다. 이 학교는 전킨 선교사가 설립하여 앞선 신학문과 기독교 정신을 가르쳤고, 3.5 만세운동 당시 교장이었던 인돈 선교사는 미국으 로 건너가 한국의 독립만세운동의 정당성을 적극적으로 알렸으며, 영명학교 졸업생이자 교사인 박영세는 3.5 만세운동을 주도했다. 이들 은 학생들에게 나라 사랑과 비폭력평화의 기독교 정신을 가르쳤고, 학생들은 3.5 만세운동에서 배움을 실천으로 옮겼다. 3.5 만세운동과 그 정신은 그 후 군산지역의 자발적인 만세운동으로 계속 이어졌다.