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Short Nonfiction Collections - Book 1

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The Fourth Great Advance in Astronomy

Photography has superseded visual observations in many departments of astronomy and is now carrying them far beyond the limits that would have been deemed possible a few years ago. The photography of stellar spectra is receiving at the present time in nearly all the great observatories in the world It may well be regarded as the third great advance in astronomy What will be the fourth advance and how will it be brought about? To answer this question we must consider the various ways in which astronomy and for that matter any other science may be advanced.

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