Word: orbiters
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...Recovered an instrument-laden capsule, ejected on cue by an orbiting Discoverer satellite, as it dropped from space into the sea near Hawaii. This success brought the U.S. closer to its space ambition for 1961: to fire a man into orbit and bring him back alive...
...tracking." Fidgeting, Pierce waited in the silence that followed, twisting the coffee cup in his hands. Suddenly, the speaker crackled again, and an excited voice relayed a message from Australia: "Woomera has it!" Pierce leaped out of his chair, his glasses bouncing on his nose. "It's in orbit," he cried. "Echo is in orbit." An hour later, a familiar voice filled the room : "This is President Eisenhower speaking." The President's words, spoken into a White House tape recorder months before, had just been broadcast from Goldstone, Calif., and had carried clearly across 2,500 miles...
Studying the Companion's orbit around Sirius, they proved that its mass is 96% of the sun's, yet it gives 400 times less light. At first they thought that it was an average, sun-sized star that gives less light because of low temperature. But by 1915 astronomers were able to prove that its surface is really hotter than the sun's and gives three times as much light per square inch. If a star's surface is bright but the star as a whole gives off little light, then the only possible conclusion...
...then, suddenly, it increased. In August 1957 the Soviets fired their first ICBM, and the oceans narrowed from thousands of miles to 30 minutes. The continental U.S. came within reach of a distant enemy firing from his own shore. On Oct. 4 that same year. Sputnik I soared into orbit. Official Washington, once it got over the shock, set about finding effective ways to respond to the increased Russian capabilities...
...Suddenly I saw what appeared to be a bright star with a gaseous-appearing halo, elliptical in shape," said Captain H. Lanier Turner. "But right away I could see it was moving, and I judged it to be an ICBM, or something the Russians were trying to put in orbit...