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NASA's MRO spacecraft captured a landscape on Mars that has what looks like crawling spiders. Scientists call this land areaniform. How is it formed on the red planet? (19459013) NASA / JPL-Caltech / University of Arizona
NASA shared a landscape view of a surface on the planet Mars that features what looks like creepy spiders.
Image of the day [19659004LookingattheUSPastalAgenciesintheframeoftheseriesImageoftheDayvendredethePoleofthesurfofthegreenplanet13th
The image shows a cap of carbon that enveloped the area during the winter as the sun returns in the spring. It shows what looks like silhouettes of spiders emerging from the surface of Mars.
Araneiform Field
These arachnid features, however, are not true spiders. These features are what scientists call "areaniform terrain". Mounds form when the carbon dioxide ice below the surface warms up and is released.
NASA says that the active seasonal process does not happen on Earth, but because the ice is dry on our planet, the dry ice on Mars is sublimated. warms up from solid to gas and gets trapped under the surface.
How areaniform soils form on the surface of the planet Mars
The trapped carbon dioxide gas eventually accumulates under pressure and eventually becomes sufficiently resistant to pierce the ice like a jet that spews out dust. The gas is then released into the atmosphere, but darker dust can settle around the vent where winds can transport it to produce streaks. The loss of sublimed carbon dioxide results in spider-like characteristics in the surface.
"There are organized channels on Mars that look like spiders, but we do not want to confuse anyone by talking about spiders." When we talk about "channels", no "bugs", NASA says
"The gas flows through these channels until it meets a vent, where it escapes into the atmosphere, carrying dust with it. blown by the prevailing wind. "
Mars Reconnaissance Orbiter
The image was taken by the Mars Reconnaissance Orbiter (MRO) .The $ 720 million spacecraft launched more than a decade ago in 2005 was intended for reconnaissance and the exploration of the red planet from orbit.
The HiRISE camera aboard the satellite captured astonishing images: a crater with ravines crossing the sand dunes on the arid world and classic barchanic dunes on the Lyot crater region of Mars that look like blue dunes in an improved image that NASA shared last month.
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