Louis Friedman is an American space advocate and co-founder of the Planetary Society, an organization dedicated to promoting the exploration of space. He has played a significant role in advancing public interest in space science and has worked on various space missions, including those related to Mars exploration. Friedman has also contributed to the development of space policy and education. He has authored numerous articles and books on space exploration, emphasizing the importance of international cooperation in scientific endeavors. His efforts have helped inspire generations to look toward the stars and understand the significance of space research.