Which booster was used to send the 1st American into orbit?
John Glenn John Herschel Glenn Jr. (July 18, 1921 – December 8, 2016) was a United States Marine Corps aviator, engineer, astronaut, and United States Senator from Ohio. In 1962 he became the first American to orbit the Earth, circling it three times.
ATS-2 ATS-2 (Applications Technology Satellite) was a communications satellite launched by NASA on April 6, 1967 on an Atlas-Agena D rocket from Cape Canaveral.