Greg MatloffGregory Matloff is a leading expert in possibilities for interstellar propulsion, especially near-Sun solar sail trajectories that might enable interstellar travel. He is also a professor with the Physics Department of New York City College of Technoogy (CUNY), a consultant with NASA Marshall Space Flight Center, a Hayden Associate of the American Museum of Natural History, and a Member of the International Academy of Astronautics. Read More Read Less