Astronomers are once again turning their attention to the red planet and how the planet is made. A study out of Northwestern University and published in the journal Nature on Wednesday recapped two surveys into the layers and core of Mars, looking for signs of systemic activity and examining the planet’s deep composition.

According to the report, both studies conclude that the liquid iron-nickel core of Mars is surrounded by an approximately 150-kilometer or 93 miles-thick layer of “soft, essentially molten rock.”

“This could be a sign that Mars had a turbulent interior following its formation, rather than a calmer one that more gently transported and shed heat to interplanetary space,” lead author Suzan Van Der Lee wrote in the Nature paper, titled “Mars is Surprisingly Soft.”

As part of NASA’s InSight rover mission launched in 2018, researchers conducted seismological studies on the interior of Mars’ crust for three years that collected data on “marsquakes” and the effects of meteorite impacts.

“The original intention was to learn more about the formation and evolution of Mars as a planet,” Van Der Lee, Professor and Director of Computing at North

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Author: Jason Nelson

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