Spiders in the Inca city on Mars.

The Inca city also known as Angustus Labyrinthus is located just 500 km from the Martian South Pole, it was discovered by NASA's Mariner 9 Probe that was launched towards Mars on May 30, 1971, arriving at the red planet on November 13 of the same year. year, it also became the first spacecraft to orbit another planet. The name of this place is due to the rectangular structures that remind us of the remains of an ancient city lost in the desert, why Inca, which is a civilization of the highlands and mountains and not Egyptian, Nazca or Caral, which are civilizations of areas more related to deserts, because it reminded NASA scientists literally of the ruins of the Inca city of Machu in the Peruvian Andes.

But the important thing is how these structures were created with lines of rock walls that form angles of almost 90 degrees. There is a theory that says that it was due to the action of glaciers, but it does not explain well what we see, the theory most supported by scientists. researchers is that they could be created in the following way: In the past, an exact date of the event is not given, but it is certain that it was many millions of years ago, an asteroid impacted Mars creating a large circular crater 86 km in diameter, with the impact the Martian crust fragmented like a crystal and magma flowed through those cracks when. The magma cooled, walls of hard rock resistant to erosion were formed, like dams, the crater was covered and then partially unearthed due to erosion, the hard rock walls that the magma had formed remained standing as it The softer surrounding material was disintegrating due to erosion and thus these ruin-like structures were born.

And the spiders reported by the ESA captured by the Zonda are a strange and mysterious phenomenon, they arise when carbon dioxide gas is heated by the sun, when heated it turns from ice to gas and breaks the surface ice plates creating jets or geysers They expel along with the gas dark material that is below the surface and it is that dark material that when it falls ends up making those drawings that resemble spiders. They can be so numerous that scientists call the terrain affected by spiders as araneiform terrain and it is important to identify it because as you can imagine, if you were an astronaut exploring Mars you would not want to enter an area where the ground could literally explode under your feet.

Here we come to the mystery, a mystery that intrigues scientists because it turns out that Martian spiders are curiously exclusive to the South Pole Region of Mars, why there and not somewhere else, because at the moment this has no explanation, it is another of the many enigmas. that still remain to be resolved on the red planet.