At the age of 95, American astronaut and aviation hero John Glenn has died. John Glenn's world famous career in aviation and aerospace began early: he received his pilot license in 1941 at the age of 20. As a Marine Corps pilot, he broke the transcontinental flight speed record. In 1962, he became the first American to orbit the Earth: 36 years later in 1998, at age 77, he … [Read more...] about Godspeed John Glenn – American Aviation Hero