From Bigfoot on the Moon to the face of Jesus in a piece of toast - why do we see faces where none exist ?
NASA has posted up an amusing example of pareidolia found in a photograph taken using its HiRISE camera.
The latest in a long line of anomalous objects spotted in Mars photographs is a floating wooden spoon.
Eagle-eyed anomaly hunters have spotted something that looks like a human figure on the surface of Mars.
A new image of a rocky outcrop on the surface of Mars shows what looks like a large crab-like creature.
The US President's likeness was picked up in a photograph taken by the Spirit rover over 9 years ago.
Pareidolia is a phenomenon that can make us see faces and other meaningful shapes in abstract patterns.