Word: crusts
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Dates: during 1970-1979
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...undergo a 21-day postflight quarantine. But they used almost every spare moment to help in the preliminary rock analysis. They were especially interested in Scott's white, coarse-grained "Genesis rock"-which may be a fragment of the moon's original 4.6 billion-year-old crust. Indeed, the scientific dividends from Apollo 15 were proving to be so great that NASA announced that it was giving a berth to astronaut-geologist Harrison Schmitt on the final scheduled moon voyage, Apollo 17, next year. Thus, he will become the first scientist to walk the moon...
...crystals; to scientists his description indicated that it had once been molten and had cooled slowly, probably far below the surface. "The Holy Grail," proclaimed NASA Geochemist Robin Brett, who, like Scott, immediately concluded that the specimen could well be an elusive fragment of the moon's original crust. The crystalline rock, the first large one of its kind found by astronauts, may well give scientists a new slant on the early history of the 4.6 billion-year-old moon. It may also expand man's knowledge of the primordial earth, where wind, water and crustal movements apparently...
APOLLO 15 Astronaut Dave Scott was hardly exaggerating. As he stepped off the ladder of his moon ship Falcon to become the seventh man to walk on the lunar crust, Scott faced the most awesome terrain ever explored: stark mountains, treacherous gorges, strange mounds and craters. "I can look straight up and see our good earth there," he said. A quarter of a million miles away, the world looked up and saw Scott, his peculiar light-footed movements carrying him across color- television scenes of stunning clarity...
...sampling of four major types of lunar features: a mare (or lunar sea of once molten lava), an alpine range called the Apennines, a deep, snaking rille or gorge and a variety of puzzling smaller mounds and craters. Scientists hope to recover fragments of the moon's original crust. The landscape could supply scientists with new clues to the origin of the moon and to the birth of the solar system itself...
Most patients reported rapid relief from the pain of their cold sores, often within an hour of the first exposure to light. Fully 90% reported that their cold sores formed a painless crust within 24 hours and disappeared completely in three to five days...