Difference between revisions of "August 18"
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− | + | '''1877''' – Asaph Hall discovers Martian moon Phobos. | |
<noinclude>[[Category:On This Day|231]]</noinclude> | <noinclude>[[Category:On This Day|231]]</noinclude> |
Revision as of 22:58, 23 September 2021
1877 – Asaph Hall discovers Martian moon Phobos.