With a few hills, some shadow, and a heavy dose of imagination, you can see a lot of things on Earth or in a space rock that are not there.
In this realm of false sightings, Mars reigns.
Mars has a heart, for one. And then there's the mile-long translucent worm. The most famous example is the Face on Mars, the one that some people believe to be the construct of an intelligent civilization.
Less controversial is the Happy Face on Mars, first noted in NASA's Viking Orbiter mission. Nobody seriously thinks it's actually something that's been built. And new photos would lay to rest any wild ideas along these lines.
From straight overhead, the Happy Face resembles that ubiquitous yellow smiling sticker. But seen in a new perspective view by the European Space Agency's Mars Express orbiter, the smile is wiped from the landscape, becoming nothing more than a line of mountains.
The smiling mountains sit within the Galle Crater, a hole in the ground dug by a space rock and whose rim forms the outline of the face. It is located on the eastern rim of the Argyre Planitia impact basin. Galle is 143 miles (230 km) wide.
The new images were released today.
Spotting things that don't exist-on Mars or in clouds-is called pareidolia. A study last year found that humans are particularly susceptible to seeing human faces where there are none, because our knowledge of the human face is so ingrained in our brains.
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