John Glenn was the only one of the Mercury Seven astronauts to fly on the space shuttleon STS-95 in October-November 1998. The flight came 36 years after his only other space mission, Mercury ...
"As the original Glenn, I can tell you I see the day coming when people will board spacecraft the same way millions of us now board jetliners," wrote the Mercury astronaut and U.S. Senator in 2016 ...