John Glenn - astronomy.

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John Glenn - astronomy.
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John Glenn - astronomy.
John Glenn, born in 1921, United States senator and astronaut. Glenn was the first American to orbit the earth, aboard the third piloted flight of the Mercury program.
He also became the oldest person ever to go into space when he rode aboard the space shuttle Discovery in late 1998.
Glenn was born in Cambridge, Ohio. In 1939 he entered Muskingum College, in Ohio, but he left in his junior year to take preflight training in the Naval Aviation Cadet
Program. As a pilot in the U.S. Marine Corps, he flew 149 combat missions in World War II (1939-1945) and the Korean War (1950-1953). In 1957 Glenn became the
first person to make a nonstop supersonic (greater than the speed of sound) flight across the United States, setting a speed record of 3 hours 23 minutes 8.4 seconds
on a trip from Los Angeles, California, to New York City.
In 1958 Glenn joined the group of U.S. military men competing for selection to become the first U.S. astronauts. The National Aeronautics and Space Administration
(NASA) chose the first group of astronauts, including Glenn, in 1959. He was selected to fly aboard the third U.S. piloted spaceflight, which was the first piloted U.S.
mission to orbit the earth. He and the other six Mercury astronauts trained intensively before their flights. On February 20, 1962, Glenn became the first American to<...


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John Glenn - astronomy.

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