Word: unfamilar
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Dates: during 1960-1969
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Soon after, he obtained a good spectrum from the quasar and, like his colleagues Sandage and Greenstein, he was puzzled by the sight of unfamilar spectral lines. But after staring at the spectrum for six weeks, Schmidt had a wild, almost desperate thought. Three closely spaced spectral lines on his photographic plate resembled hydrogen lines. But they were not in the blue segment of the spectrum where they belonged: they were superimposed on the red portion instead. Could they actually be hydrogen lines that had shifted to longer wave lengths...
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