Professor Paul YUN is a NASA(National Aeronautics and Space Administration)/JPL Solar System Ambassador and Tenured professor of Mathematics El Camino College. He received his B.S. at UC Berkeley and M.S. at UCLA and EdM at Harvard University. He has been a Tenured professor of Mathematics El Camino College since 1999, and visiting scholar of Korea Astronomy and Space Science Institute since 2015. He has been NASA/JPL Solar System Ambassador since 2012, and recognized as NASA Solar System Ambassador of Year 2016. He is actively participated in space activities, serving as a proposer of Human Landing Site on the Surface of Mars in 2015, Voter of MARS 2020 three candidate landing sites in 2017, Judge of Artemis Moon Pod Essay Contest in 2020.