Word: geminis
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...time Astronaut Charles Bassett climbs out of the Gemini 9 some time next year to take a walk in space, the very name of his mission-EVA (for extravehicular activity) -may have to be changed. Bassett will be not so much outside one vehicle as inside another. His air-conditioned suit with its $6,000,000 backpack containing 166 lbs. of assorted gadgetry will amount to a spacecraft in itself...
...earphones if fuel or oxygen is running low. With its own hour-long oxygen supply, storage batteries and radio and telemetry systems, the AMU does not even need the "umbilical cord" that was used to supply oxygen and radio communication to Astronaut Ed White when he walked outside Gemini...
Tethered by Nylon. Mastering orbital mechanics, the physical laws that govern the motion of an orbiting satellite, will be even more difficult. When an astronaut is behind his Gemini capsule he cannot simply increase his speed to catch up with it. Increased speed will put him into a higher orbit, which will make him fall farther behind. To overtake his Gemini capsule, he will have to fire his downward and forward thrusters alternately until he edges close to his target...
Another space mystery seemed close to solution last week. After painstaking analysis of hundreds of data-packed yards of magnetic tape, Air Force and NASA investigators offered a tentative explanation for the failure of an Agena rocket to soar into orbit as a target for the spacecraft Gemini 6. Looming unexpectedly out of the complex vocabulary of modern missilery, the Agena's trouble sounded as old-fashioned as a Model-T. The Agena's engine, said the scientific detectives, had backfired...
Though repeated ground tests of the Agena have been so successful that the odds are high against the occurrence of another hard start, NASA is not taking any chances. The rocket will be modified if it is still to be used as planned in the flight of Gemini 8. On that mission, Astronauts Neil Armstrong and David Scott are scheduled to restart the engine of an orbiting Agena after docking with it. Another backfire could destroy not only the Agena but Gemini 8 and its occupants as well...