Complex sentence: He later went to Ecole nationale supérieure de l'Aéronautique et de l'Espace and completed Avionics & Control Systems Engineering in 1989, and his MS from University of Washington, Seattle in 1992.
Split into simpler sentences: He later went to Ecole nationale supérieure de l'Aéronautique et de l'Espace and completed a degree in Avionics & Control Systems Engineering in 1989. Later he received his MS from University of Washington, Seattle in 1992.