In recent days, the planet Mars has been at the center of the attention of scientists and the general public, either because of the brilliance with which it has shone on these nights, or because of the amazing discoveries that have taken place on it.But nobody could suspect that NASA would find the muppet Beaker —Beto, in Spanish— on Martian soil.Of course, none of this is scientific or has been confirmed by the space agency, and it is Internet users who have shared the surprising finding.It all started with a NASA tweet from the HIRISE account, which stands for High Resolution Imaging Science Experiment, which according to the space agency is the most powerful camera ever sent to another planet, and is one of the six high-tech instruments aboard the Mars Reconnaissance Orbiter (MRO) space probe.In the tweet, HIRISE shared the image of the ground at the Martian south pole, adding that even despite the dust storm that has plagued the red planet for weeks, they managed to get some good pictures.Pay attention to the image on the right.HiPOD (13 August 2018): We'll Always Have the South Pole While the global dust storm has obscured much of the surface, we've still been able to get some good images of the polar region.(247 km above the surface) NASA/JPL/University of Arizonahttps://t.co/s8XxC2dtya pic.twitter.com/Cp0rD02fuYThat's how it is!With a little imagination, in the middle portion of the right three circles can be seen in the middle of a formation that could be interpreted as the head of the Muppets' laboratory assistant, known as Beaker or Beto in Spanish, who is remembered for his peculiar shape to communicate - because it is clear that he cannot speak.It should be clarified that this formation is not the intentional work of a superior intelligence, and that the resemblance that we detect with the face of the friendly character created by Jim Henson is, rather, a trick of perception that takes place in the human brain.In psychology, such a phenomenon is known as pareidolia, which occurs when a vague, random stimulus—usually an image, but can also be a sound—is mistakenly perceived by the brain as a recognizable shape: in this case, a face.A similar phenomenon happens when we see threatening faces in the darkness of our room, when we think we see animals or shapes in the clouds, or even when we hear a song in a foreign language and interpret the lyrics as nonsense phrases in our language.This happens with some frequency in astronomical observation: you just have to remember the 'rabbit on the Moon', the famous 'face on Mars' —see if you can find it in the image above— or the nebula known as the 'eye of God '.In other words, don't rely too much on your senses or your brain, as they often see—or hear—not what is there, but what they want to see or hear.