File:Old view moon.jpg|"Lunar Day," from the book ''Recreations in Astronomy'' by H. D. Warren D. D., 1879. Later study showed that the surface features are much more rounded due to a long history of impacts. | File:Old view moon.jpg|"Lunar Day," from the book ''Recreations in Astronomy'' by H. D. Warren D. D., 1879. Later study showed that the surface features are much more rounded due to a long history of impacts. |