Valles Marineris
One of my favorite niche blogs, Future Feeder, tipped me to a similar piece of software available free from NASA called World Wind. It not only has the Earth, but also the Moon, Mars and more. The overlays or 'layers' offer a wealth of informational views. See the earth in different wavelengths of light, in colors that show crop data, even USGS topo maps. I just downloaded it today, so I have barely scratched the surface.
I was on Mars, zooming over the Valles Marineris this afternoon, taking a break from working outside in the heat, when the image on my screen reminded me of the cracks in my heels. Goes to show how my mind works. Here is a picture I took of my heels today. See the resemblance?
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