The fact is both the wolf in the inkblot and the woman on Mars are the result of the same psychological phenomenon. It's known as pareidolia - the tendency humans have to perceive familiar images, especially faces, where none exist. Pareidolia happens to everyone and unlike a hallucination, it manifests itself as something we see in something else, like seeing Pepe the frog in a piece of toast. Scientists have known about this phenomenon for centuries but they've only recently begun to figure out exactly how it happens.