As Mars’ polar ice caps warm up, sublimated CO2 gas explodes out in tall geysers, forming spider-like formations in their wake.The European Space Agency’s Trace Gas Orbiter captured these “spiders” with stunning clarity near a south polar region called Angustus Labyrinthus,

Dark formations with leg-like tendrils pop out in European Space Agency images of Mars. These eye-catching seasonal spiders aren't alive, though.

A recent image released by the European Space Agency shows what appears to be a swarm of spiders crawling across Mars' surface.

Martian Creepy Crawlers The European Space Agency's Mars Express orbiter has spotted mysterious "spiders" roaming the Red Planet's southern polar region. But they're not the arachnids we've come to fear back on Earth — they're the result of a complex geological process that causes carbon dioxide to sublimate,

ESA's Mars Express has snapped the telltale traces of  ‘black spiders’ scattered across the southern polar region of Mars

These spider-like patterns spotted on the Martian surface are not actual spiders. They are formed when carbon dioxide gas warms up in sunlight and erupts through the ice's surface. As a result, intricate and branched channels are carved in the Martian soil. The exposed darker material creates noticeable blotches against the lighter terrain.

The European Space Agency (ESA) has announced that the 'spiders' spotted by the agency’s Mars orbiter are actually geological features. When sunlight mixes with carbon dioxide, it triggers the release of gases that fracture ice,

When you think of life on Mars, what do you imagine? Most people think of little green men or gray Martians. Well, a photo from ESA's Mars Express shows something far different.

The thought of a colony of giant spiders sprawled across the surface of Mars may sound like something out of a sci-fi thriller. But new satellite images released by the European Space Agency (ESA) paint an alarming picture of such a dystopian reality.