Looks like that soil has a crust. Icy layer on top?
Here's a question. Go to the link cabojoe gave, click on the image that shows the small crater. What is it about the human brain that makes that crater look like a bump, but if you turn the picture upside down, it looks like a crater? Where did we get the inability to see craters correctly if they are lit "wrong"? And why?
"Here's a question. Go to the link cabojoe gave, click on the image that shows the small crater. What is it about the human brain that makes that crater look like a bump, but if you turn the picture upside down, it looks like a crater? Where did we get the inability to see craters correctly if they are lit "wrong"? And why?"
Funny, I noticed that too.. I am an avid viewer or space pictures.. I always notice that a depression can look like a raised area, and vice versa, if it is lit a certain way..
It is very strange, interesting you brought it up. I thought I was the only one...
I remember thinking.. "Olympus Mons is that big hole in the ground?"
LOL
Bones
It's like an M.C. Escher sketch: You can force your brain to see it in either of two different ways. Or you can not interfere with the way your brain interprets the image and run a 50% chance of getting it wrong. Once I convince myself the scene is being lit from the right, then I see a crater, otherwise a bump.