Stephanie Leifer

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About

Stephanie Leifer is a visionary in the field of advanced space propulsion, dedicated to turning humanity’s dream of interstellar exploration into an engineering reality. Her research focuses on the critical challenge of developing propulsion systems capable of reaching nearby stars and the outer reaches of our solar system. In her seminal 1998 work, "Evaluation of propulsion options for interstellar missions," Leifer systematically analyzed a range of concepts—from advanced electric propulsion to nuclear fusion—for robotic rendezvous missions to stars up to 40 light-years away. This foundational study, which has garnered 33 citations, provides a crucial roadmap for achieving trip times as short as a decade to our closest stellar neighbors. She further advanced this frontier in her 2000 paper, "Propulsion options for interstellar exploration," where she addressed the near-term goal of reaching the heliopause (40-250 Astronomical Units). By identifying key enabling technologies for this first step into the interstellar medium, Leifer’s work has directly shaped NASA’s strategic planning for ambitious science missions, establishing her as a leading authority on the propulsion systems that will one day carry us to the stars.