Here is a look at the life of John Glenn, the first American to orbit the Earth and a former US senator.PersonalBirth ...

John Glenn was the only one of the Mercury Seven ... The flight came 36 years after his only other space mission, Mercury-Atlas 6, and was something of a victory lap for the 77-year-old Glenn ...

On Nov. 29, 1961, Enos the chimp was launched from Cape Canaveral aboard the Mercury-Atlas 5 spacecraft ... Following Enos’ successful flight, John H. Glenn Jr. was selected to make the first ...