University of Washington, Seattle

Professor of Aerospace Engineering

University of Colorado

Professor of Aerospace Engineering, Technion - Israel Institute of Technology

Professor, Naval Postgraduate School

Texas A&M University

Professor, Harbin Institute of Technology, Shenzhen

courtesy faculty, Department of Astronomy, Astrophysics and Space Engineering, IIT Indore

National Pingtung University of Science and Technology

Associate Professor, Department of Aerospace Engineering, Shahid Beheshti University