Director of Russia and Eurasia Program at Carnegie Endowment for International Peace

Associate Research Professor, Institute for Policy Research at Northwestern University

Associate Professor, National Security Department at University of New Haven

Political Science & International Relations Lecturer at University of New Haven

Astronomer, Research Associate at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomy at McDonald Observatory, University of Texas at Austin

Professor, Arizona State University, School of Earth and Space Exploration in Phoenix, AZ

Member of the Board at Harvard Belfer Center for Science and International Affairs

Professor of Pediatrics, Medical Ethics and Health Policy at University of Pennsylvania, School of Medicine

Associate Professor of Emergency Medicine at Boston University, School of Medicine

Professor & Director of the Institute for Bioethics and Health Policy at University of Miami, School of Medicine

Chief of the Division of Ethics, tenured faculty in the Department of Medical Humanities and Ethics at Columbia University, Irivng Medical Center