Elon Musk is the founder and CEO of SpaceX, a private aerospace manufacturer and space transportation services company. He is also the founder of Tesla, Inc., an electric vehicle and clean energy company. Musk is a South African-born American entrepreneur, investor, and engineer. He has been involved in numerous other business ventures, including Zip2, PayPal, SolarCity, and The Boring Company. Musk's vision for SpaceX is to make space exploration more accessible and affordable. He has stated that his ultimate goal is to enable humans to become a multi-planetary species by establishing a self-sustaining city on Mars.