Astronaut James Lovell, best known as the commander of Apollo 13, has died. Lovell was a veteran of four spaceflights, including Gemini 7, Gemini 12, Apollo 8, and Apollo 13. He holds the distinction of being the first person to travel to the Moon twice, aboard Apollo 8 and Apollo 13. While Apollo 13 famously suffered a critical malfunction en route to the Moon, Lovell's calm leadership and expertise were instrumental in guiding the crew back to Earth safely. His contributions to the space program and his display of courage under pressure have solidified his legacy as a pioneering figure in space exploration.