Elon Reeve Musk (/ˈiːlɒn ˈmʌsk/; born June 28, 1971) is a South African-born Canadian-American business magnate, investor, engineer, and inventor. He is the founder, CEO, and CTO of SpaceX; co-founder, CEO, and product architect of Tesla Inc.; founder and CEO of Neuralink; co-founder and chairman of SolarCity; co-chairman of OpenAI; co-founder of Zip2; and founder of X.com, which merged with Confinity and took the name PayPal. As of March 2017, he has an estimated net worth of $13.9 billion, making him the 80th wealthiest person in the world. In December 2016, Musk was ranked 21st on Forbes list of The World's Most Powerful People.
John Herschel Glenn Jr. (July 18, 1921 – December 8, 2016) was an American aviator, engineer, astronaut, and United States Senator from Ohio. In 1962 he became the first American to orbit the Earth, circling three times. Before joining NASA, he was a distinguished fighter pilot in both World War II and Korea, with five Distinguished Flying Crosses and eighteen clusters.