Local scientists help map the magnetic nets on Mars

Local scientists help map the magnetic nets on Mars

An example of a polygonal grid network shows approximately 10-meters thick, cutting brackets connecting non-horizontal polygons 100–200 meters. Yes: NASA / JPL / MSSS / Caltech Murray Lab / Esri

Over the past two years, scientists have observed various lattice nets on Mars using images from planes orbiting the Red Planet. How and why the ridges were formed and what they said about the history of Mars is unknown.

A team of scientists, led by Aditya Khuller of Arizona State University’s School of Earth and Space Exploration and Laura Kerber of NASA’s Jet Propulsion Laboratory, have begun learning more about these ridges by writing a large area of ​​Mars with the help of thousands. of scientists.

Their knowledge, published in Of ʻIkarusshowing the ridges on Mars hold fossilized records of ancient groundwater flowing through them.

How the nets were formed on Mars has been a mystery since they came out of orbit. The scientists determined that three steps were taken in the construction of the ridges, including the formation of polygonal fracture, filling of the fracture and eventual erosion, which revealed the interlocking nets. .

To learn more about these ridges, the team combined data from the THEMIS camera of NASA’s Mars Odyssey orbiter and the CTX and HiRISE instruments of the Mars Reconnaissance orbiter. Then, they launched their local science project using the Zooniverse platform.

Local scientists help map the magnetic nets on Mars

Map of the polygonal spheres (black dots) seen on the map (the black dots), which cover about one -fifth of the surface of Mars. The landing of the Mars Perseverance rover is shown in purple. Source: Mars Orbiter Laser Altimeter Elevation Map. Available: NASA / JPL / GSFC.

Nearly 14,000 local scientists from around the world joined in to explore the orbital nets on Mars, focusing on the area around Jezero Crater, where NASA’s Perseverance landed. rover last February. Finally, with the help of local scientists, the company was able to map the distribution of 952 polygonal ridge networks over an area that covers about one -fifth of the surface of Mars.

“This research is important for local scientists because these features are real features on the skin, so anyone with a computer and the internet can help identify these features with images of Mars, ”Khuller said.

Most of the netting nets (91%, or 864 out of 952) analyzed were on ancient land that had been destroyed about 4 billion years ago. Meanwhile, Mars is thought to be warmer and wetter, perhaps due to the nature of these ridges.

Preliminary research at this area showed that those ridges were not covered with layers of soil that showed specific signs of clay. Because the clay came out from being polluted by the water, the research team believed that the ridges were created by the soil water. Although the amount of soil in these lands makes it difficult to determine if any clay is present in the new clay nets by Khuller and Kerber, their similarity and size suggests that they were made. they are from similar global water processes.

This knowledge has helped scientists to “find” the footprints of groundwater running through the ancient Martian surface and determine the appropriate location, over 4 billion years ago, for the water flows close to the skin.

“We hope the whole world will be written with the help of local scientists,” Khuller said. “If we’re lucky, the Mars 2020 Perseverance rover can confirm these findings, but the closest setting of the hills is kilometers away, so they’ll be visited on a long -distance mission.”

The different ridges on Mars have different origins

More information:
Aditya R. Khuller et al, Non -polygonal switching systems in the ancient Noachian land on Mars, Of ʻIkarus (2021). DOI: 10.1016 / j.icarus.2021.114833

Presented by Arizona State University

Directions: Citizen scientists help document solar nets on Mars (2022, April 6) retrieved April 6, 2022 from https://phys.org/news/2022-04-citizen-scientists -ridge-networks-mars.html

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