
John Glenn
John Glenn was a pioneering American astronaut and politician, renowned for his contributions to space exploration and public service. In 1962, he became the first American to orbit the Earth, demonstrating the feasibility of human spaceflight. After a successful career in the U.S. Marine Corps and as a senator, Glenn returned to space in 1998 aboard the Space Shuttle, becoming the oldest person to fly in space at age 77. His achievements helped advance space technology and inspired generations, symbolizing perseverance and innovation in science and government leadership.