Explore the possibilities and challenges of interstellar travel in this 57-minute talk by NASA scientist Les Johnson. Delve into the physics and technologies that could enable humans to reach the stars, from recent exoplanet discoveries to promising interstellar missions on the horizon. Learn about exciting developments in cosmic travel and the obstacles that must be overcome to turn these futuristic concepts into reality. Gain insights from Johnson's expertise as a physicist and author, including his work on NASA's first interplanetary solar sail mission. Discover the potential for venturing beyond our solar system and perhaps even colonizing distant worlds in this fascinating look at the future of space exploration.