Marcel Ghanem’s host yesterday on Kalam el Nass was Georges Helou, who happens to be the director of the Spitzer Science Center, and director of the NASA Herschel Science Center. You can read more about him [Here] and his work [Here].
There are 2 other Lebanese which I know of that work for NASA, Charles al-Achi, director of NASA’s Jet Propulsion Laboratory, and Joseph Geagea who happens to be Samir Geagea’s brother.