How anyone can find an impact crater by just looking satellite images? There are many volcanic processes that can create circular formations that look almost like impact craters.

Only way to confirm it as an impact crater is to search for shock structures in the rock (shatter cones for example) and map possible gravitational and magnetic anomalies. After that one can say if it really is an impact crater or not.

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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool.
-- Richard Feynman