Only three years ago, Astronaut John Glenn and his Friendship 7 capsule were the symbols of American adventure in space. Today, Glenn is a 43- year-old soft-drink company executive in Texas, and Friendship 7 is on display in the Smithsonian Institution. Both the man and his machine are honored relics of the infancy period of U.S. space travel.
That period is over—as proved by Astronauts James A. McDivitt and Edward H. White II in their Gemini 4 flight, which ended successfully last week. Glenn and his Project Mercury colleagues...
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