This causes them to create black branches measuring from 0.03 to 0.6 miles across (45 meters to 1 kilometer) and dot an area near Mars' South Pole known as either Inca City or Angustus Labyrinthus.

NASA’s Mariner 9 probe first spotted Inca City in 1972 and its geometric-looking network of ridges reminded astronomers of Inca ruins. Scientists are still not sure exactly how Inca City formed.

The European Space Agency and NASA just served up a reminder that Mars is not the static, frozen husk many picture. Each ...

In the Mars Express image, the dark spots can be seen creeping across the towering hills and expansive plateaus of the mysterious Inca City discovered in 1972 by NASA’s Mariner 9 probe. While ...

Nightmarish 'Spider' Phenomenon Revealed in Photos of Mars Published Apr 25, 2024 at 9:59 AM EDT Updated Apr 25, 2024 at 10:12 AM EDT By Jess Thomson ...

Most of the spots can be seen near Mars' mysterious Inca City, which was first discovered by NASA's Mariner 9 probe in 1972.

Recently released satellite images show creepy-crawly formations scattered across Mars’ surface. The spider-like markings can be seen on the outskirts of Mars’ Inca City near the planet's ...

Recently released satellite images show creepy-crawly formations scattered across Mars’ surface. The spider-like markings can be seen on the outskirts of Mars’ Inca City near the planet's ...

Recently released satellite images show creepy-crawly formations scattered across Mars’ surface. The spider-like markings can be seen on the outskirts of Mars’ Inca City near the planet's ...

Recently released satellite images show creepy-crawly formations scattered across Mars’ surface. The spider-like markings can be seen on the outskirts of Mars’ Inca City near the planet's ...