No Earth atmosphere on Mars

No Earth atmosphere on Mars

1894

American astronomer William W. Campbell was the first to question the common belief that there was an Earth like atmosphere on Mars. By comparing the spectrum of Mars and the Earth’s moon he saw they were identical. Thus concluding that the atmosphere of Mars was much like that of our moon. Only in 1925 were Campbell’s results verified by theĀ American astronomer Walter S. Adams.

Read more about a planets spectrum.

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