April 6, 2010
Flat Out of Luck
image by Tiziano Olivetti, Italy
LPOD has featured so many great images of Eratosthenes that I have nothing new to say, but Tiziano's image is too grand to pass up. Although the radiating ejecta and secondary craters on the mare floor are impressive, what catches my eye are the flat spots on the crater's floor. Is it impact melt? I would think not since melt is only preserved so long and Eratosthenes is perhaps twice as old as Copernicus. The way to tell is to check with higher resolution images. A Lunar Orbiter V Chuck Wood
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