The original seven Mercury astronauts look at a model of the rocket that would eventually launch their Mercury capsules into space. From the left, front row: Virgil "Gus" Grissom, Scott Carpenter, Donald "Deke" Slayton, Gordon Cooper. From the left, back row: Alan Shepard, Walter Schirra, John Glenn.
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Image courtesy of NASA
In 1959, John Glenn was chosen to be a Mercury Astronaut. He became the first American to orbit the Earth.
NASA just announced that Glenn will fly on the shuttle Discovery in October. Glenn is now 76 years old. So in October he will become the oldest person to fly in space!
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