50th Anniversary: John Glenn's Earth Orbit

Glenn circled the earth three times in five hours and became a national hero.

Glenn Circled the Earth Three Times in Five Hours and Became a National Hero

50th Anniversary: John Glenn's Earth Orbit

Astronaut John Herschell Glenn Jnr, who became the first American to carry out a space orbit of the earth in the Project Mercury capsule Friendship 7. (MPI/Getty Images)

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