Word: hourglass
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Dates: during 1923-1923
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...intelligent beings like ourselves is perhaps the most absorbing question that confronts the human race." Since the pioneer observations of Professors Percival Lowell and W. H. Pickering, of Harvard, about 15 years ago, there have been marked changes on Mars. The dark marking called Syrtis Major, or the hourglass, has developed an appendage on one side which makes its shape nearly square. A large area of about 100,000 square miles, formerly appearing pale yellow like a desert region, has changed to a dusky brown. Some of the so-called lakes which had almost disappeared, have become unusually dark lately...