Amazing spider-like alien mounds have been captured crawling across the Martian surface as winter drew to a close on the Red Planet. An image, taken by NASA’s Mars Reconnaissance Orbiter in May as the South Pole of Mars edged towards spring, shows patterns etched across the surface, freakishly similar in appearance to Earth’s eight-legged creatures.
“But these aren’t actual spiders,” NASA clarifies in a post explaining the scientific process behind the distinct features. The spider-like radiating mounds are known as “araneiform terrain,” and form when carbon dioxide ice below the surface heats up and releases. This is an active seasonal process not seen on Earth, according to the space agency.
The carbon dioxide ice on Mars changes from solid to gas as it warms, causing the gas to become trapped below the surface. Over time this trapped gas builds in pressure and breaks through the ice as a jet that emits dust. The result is veiny spider-like ‘formations’ spread across the planet accompanied by dark spots formed by dust deposited around vents during the CO2 eruption.
So where are the spiders? On Mars! 🕷️ Our Mars orbiter took this image of "araneiform terrain," spider-like radiating mounds that form when Martian carbon dioxide ice below the surface heats up and releases each spring in a process not seen on Earth: https://t.co/gjuFKE2Uei pic.twitter.com/EQSEewEUP8
— NASA (@NASA) July 15, 2018
Quiet a clear explanation by NASA to this strange phenomena, but who knows the truth as nowadays they have an explanation for everything strange happens.