E-mail: spark624 (at) yonsei (dot) ac (dot) kr

Professional experiences
- Associate Professor and Professor, Dept. of Astronomy, Yonsei Univ., Seoul, South Korea (2003–present)
- Visiting Research Scholar, NASA Goddard Space Flight Center (GSFC), Greenbelt, MD, USA (2012.08.–2015.07.)
- Senior Spacecraft Engineer, NASA Langley Research Center (as employee of Swales), Hampton, VA, USA (2001–2003)
- Spacecraft Systems Engineer, Final Analysis Inc., Lanham, MD, USA (2000–2001)
- Research Assistant Professor, Dept. of Mechanical Engineering, Naval Postgraduate School, Monterey, CA, USA (1998–2000)
- Postdoctoral Associate, Dept. of Aeronautics and Astronautics, The National Academies (Naval Postgraduate School, Monterey, CA, USA) (1996–1998)
- Research Assistant, Dept. of Aerospace Engineering, Texas A&M University, College Station, TX, USA (1991–1996)
- Research Assistant, Korea Astronomy Observatory & Yonsei University, South Korea (1989–1991)
- Second Lieutenant, Republic of Korea Army (1988–1989)
Professional societies
- America Institute of Aeronautics and Astronautics (AIAA), Senior Member
- America Astroanutical Science (ASS), Member
- International Academy of Astronautics (IAA), Member
- Korean Space Science Society, Board of Directors (2006–)
- Editor-in-Chief of Journal of Astronomy and Space Sciences (2010–2011)
- The Korean Society for Aeronautical and Space Sciences, Member
- The Korean Astronomical Society, Member
- Chairman of Dept. of Astronomy, Yonsei Univ. (2007–2009)
- Director, Younsei Observatory, Seoul, South Korea (2015–2017)
Degrees
- B.S., Astronomy, Yonsei University
- M.S., Astronomy, Yonsei University
- Ph.D., Aerospace Engineering, Texas A&M University