Word: kuiper
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Dates: during 1960-1969
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...photographed in 1959 by Luna 3, argued that it would be premature to name the remainder until Orbiter 5's pictures are used to prepare definitive and complete farside charts. Of the 18 features named by the Russians from Luna 3 photographs, noted University of Arizona Astronomer Gerard Kuiper in urging a delay, only five can be precisely located and identified in more detailed Orbiter photographs...
Other scientists who have reviewed UFO cases still agree with Astronomer Gerard Kuiper, a colleague of McDonald's at the University of Arizona, who insists that until better evidence is presented, the entire subject is "fanciful." Astronomer Carl Sagan of Harvard and the Smithsonian Astrophysical Observatory says that "at the present time, there is no evidence that unambiguously connects the various flying-saucer sightings with extraterrestrial activity...
...Venus was about 800° F., some scientists expressed the hope that life might exist on its cooler mountaintops or among the water clouds and ice crystals believed to exist in the Venusian atmosphere. But the yellow hue of Venusian clouds has long caused University of Arizona Astronomer Gerard Kuiper, 61, to doubt that they were composed of water in any form...
Split Image. To test his suspicion, Kuiper loaded a team of scientists, a twelve-inch telescope and some complex infra-red instruments into a NASA Convair 990 jet last month and flew along a computer-determined course between Montreal and Lake Superior. At its 37,000-foot altitude, the plane was above 99.5% of the earth's atmospheric water vapor, which ordinarily confuses ground-based astronomers attempting to determine the amount of water on other planets...
...scientists at Block Associates in Cambridge, Mass., produced two of the clearest spectrograms ever obtained of Venus at high altitude. Although the spectrograms conclusively proved that there were no ice crystals in the Venusian atmosphere, they did reveal what appeared to be a significant trace of water vapor. But Kuiper and his associates were not deceived...