Word: marse
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Dates: during 1960-1969
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To early astronomers, it seemed obvious that there was water on Mars. What else could form the white polar caps that shrank so noticeably every spring and began to grow again in the fall? And what could possibly produce the springtime darkening of the Martian surface other than rapid vegetation...
Contemporary scientists have been far less convinced that Mars has water. They believe that the caps consist not of snow or ice but largely of frozen carbon dioxide, the principal constituent of the atmosphere of Mars. Some have suggested that the color changes are due to unknown chemical reactions, or...
Better Focus. To obtain their proof, Stephen Little of the University of Texas and Astronomer Ronald Schorn of the Jet Propulsion Laboratory turned to the same kind of tools that they and other scientists had previously used in attempts to detect Martian water: the telescope and the spectrograph, which breaks...
Furthermore, their spectrograms came when the planets were nearing conjunction (closest approach) and the earth was rapidly approaching Mars; this motion shortened the wave lengths of light being reflected from Mars. On the resulting spectrograms, the characteristic lines of Martian light were thus shifted away from the spectral lines produced...
He writes about live people rather as if they were dead and dead people rather as if they were alive. He approaches American politics like an alert observer from a foreign-and slightly hostile-country ("American Empire" is one of his favorite phrases). On the subject of sex, he scarcely...