In spite of a short history of only 30 years in space development, Korea has achieved outstanding space development capabilities, and became the 11th member of the “Space Club” in 2013 by launching its own satellites with its own launch vehicle from a local space center. With the successful development and operation of more than 10 earth-orbiting satellites since 1999, Korea is now rapidly expanding its own aspirations to outer space exploration. Unlike earth-orbiting missions, planetary missions are more demanding of well-rounded technological capabilities, specifically trajectory design, analysis, and navigation. Because of the importance of relevant technologies, the Korean astronautical society devoted significant efforts to secure these basic technologies from the early 2000s. This paper revisits the numerous efforts conducted to date, specifically regarding flight dynamics and navigation technology, to prepare for future upcoming planetary missions in Korea. However, sustained efforts are still required to realize such challenging planetary missions, and efforts to date will significantly advance the relevant Korean technological capabilities.

1. INTRODUCTION
 2. PAST EFFORTS: STARTING WITH MARSMISSION TRAJECTORY DESIGN
 3. RECENT STATUS: KPLO MISSION TO MOON
 4. PREPARING FUTURE MISSIONS: LUNARLANDING, ASTEROIDS, AND BEYOND
 5. CONCLUDING REMARKS
 REFERENCES

• Young-Joo Song(Korea Aerospace Research Institute) Corresponding Author
• Donghun Lee(Korea Aerospace Research Institute)
• Jonghee Bae(Korea Aerospace Research Institute)
• Young-Rok Kim(Korea Aerospace Research Institute)
• Sun-Jin Choi(Korea Aerospace Research Institute)