The History of Observations of Mars In The 20th Century
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Date |
Event |
| 1906 | Mars and its Canals published, Percival Lowell. |
| 1906 | Earl C. Slipher arrives at Lowell Observatory and continues his photographic studies. |
| 1907 | "...the proof by astronomical observations...that conscious, intelligent human life exists upon the planet Mars," reported as (one of) the most momentous events of 1907 by the Wall Street Journal. |
| 1908 | Mars as the Abode of Life published, Percival Lowell. |
| 1909 | George Ellery Haleusing using the Mt. Wilson 60" reflector, sees "...not a trace" of canals. |
| 1911 | A Princess of Mars, first of eleven "John Carter on Mars" novels, published by Edgar Rice Burroughs (uses Schiaparelli nomenclature; Martians have green skin). |
| 1914 | Panama Canal completed. |
| 1926 | Large day/night temperature difference (implication of thin atmosphere) measured by William Weber Coblentz and Carl Otto Lampland. |
| 1930 | Attempts to detect oxygen on Mars fail. |
10/30 1938 |
"War of the Worlds" broadcast by Orson Welles (Grovers Mill, New Jersey landings). Estimates that 1.2 million, of the 6 million, listeners thought it was a real invasion. |
| 1947 | Carbon dioxide, but no oxygen, detected by Gerard Peter Kuiper |
| 1947 | "Mars Project"(10 ships, 70 crewmembers) proposed by Werner von Braun. |
| 1962 | von Braun considers the "Mars Project" to be 15-20 years away. |
| 1965 | NASA Sourcebook on Space Sciences: most astronomers would probably agree that there are apparently linear markings...of considerable length on the surface of Mars. |
| 7/14/1965 | Mariner 4 flyby, discovers craters on Mars and little else |
A look at all of the Martian related space missions in the past 35 years | |