--- title: "Orbiter Spots “Spiders” on Surface of Mars" description: "The European Space Agency's Mars Express orbiter has spotted mysterious \"spiders\" roaming the Red Planet's southern polar region." date: "2024-04-25" modified: "2024-04-25" authors: - name: "Victor Tangermann" job_title: "Senior Editor" link: "https://futurism.com/authors/victor" url: "https://futurism.com/the-byte/orbiter-spots-spiders-surface-mars" categories: - "Astronomy" - "Mars" - "Space" tags: - "carbon dioxide" - "ESA" - "mars" - "mars express" - "the digest" --- # Orbiter Spots “Spiders” on Surface of Mars ![The European Space Agency's Mars Express orbiter has spotted mysterious "spiders" roaming the Red Planet's southern polar region.]() *\Image: ESA\* ## Martian Creepy Crawlers The European Space Agency's Mars Express orbiter has [spotted "spiders]()" on the Red Planet's southern polar region. But they're not the arachnids we [fear]() or [adore]() back on Earth — they're the result of a complex geological process that causes carbon dioxide to sublimate, digging up darker material from below the surface during the planet's spring. And they're a whole lot larger than the spiders you're used to, measuring [up to 3,300 feet across](). Carbon dioxide forms tall geysers, scattering Martian soil in "spider-shaped" patterns — a fascinating phenomenon resulting in some intriguing views from hundreds of miles away in orbit. ![]() ## Emperor's New Grooves Many of these spots have been found outside of a Martian landscape dubbed Inca City (formally Angustus Labyrinthus) thanks to its geometric ridges that summon to mind Inca ruins. Inca City's origins remain a bit of a mystery. Scientists have proposed it may have formed over time, with sand dunes turning into stone, according to the ESA. Other theories suggest magma has been seeping through sheets of Martian rock. The "spiders" caused by emerging carbon dioxide gas can be spotted among these Inca ruins around the time when Martian winter subsides, bathing its surface in warmer temperatures. This theory, which dates [back to as early as 2003](), was [first replicated in a lab]() in a [2021 study](), with scientists successfully recreating a scaled-down version of Martian spiders using a chunk of dry ice and a machine that can simulate the Martian atmosphere. "The experiments show directly that the spider patterns we observe on Mars from orbit can be carved by the direct conversion of dry ice from solid to gas," Open University planetary scientist and lead study author Lauren McKeown [explained in a statement]() at the time. **More on Mars:** *[Elon Musk Delivers Speech About Mars Settlement Plan]()* ## Author I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida. ### Author social links [Bluesky]()