NASA’s Insight Lander Shows What’s Beneath Mars’s Surface

Scientists are learning more about the internal structure of Mars and have discovered the depth of three boundaries below the surface of the planet. “Ultimately it can help us understand planet formation,” study co-author Alan Lavender said in a statement.

This is the first time these limits have been directly measured. Examining the interior of the planet is complex because it does not have tectonic plates like the Earth.

“In the absence of plate tectonics on Mars, its early history is mostly preserved compared to Earth,” said the statement, co-author Sijhuang Deng said. “” In-depth estimates of Martian seismic boundaries can provide clues to better understand the formation and evolution of terrestrial planets in general, as well as its past. “

Nasas insight lander shows whats beneath marss surface
NASA

The data was collected using NASA’s Insight Lander, which uses an instrument called a seismometer to measure vibrations coming from within Mars. It detects marsquakes, in which seismic waves pass through the planet, which can be used for information about the density and structure of the planet below the surface.

“The traditional way to examine structures under the earth is to analyze earthquake signals using a dense network of seismic stations,” Deng said in the statement. “Mars is much less tectonically active, which means that it will have far fewer Marsic events than Earth. Furthermore, with only one seismic station on Mars, we cannot employ methods that rely on seismic networks. “

Imprint of an artist's internal structure of mars. The topmost layer is the crust, and below it is the mantle, which rests on a solid inner core.
Imprint of an artist’s internal structure of Mars. The topmost layer is the crust, and below it is a mantle, which rests on a solid inner core. NASA / JPL-Caltech

The team found three boundaries within the inner structure of Mars: a division between the mantle and mantle located 22 miles below the surface, a transition within the mantle from an area where magnesium iron silicates form a mineral called altaine where they form The vaudeslite, which is found between 690 miles and 727 miles below the surface, and is divided between the mantle and core, located between 945 miles and 994 miles below the surface.

This information not only reveals how the planet now exists, but it can also be used to test how Mars evolved over time.

The findings are published in the journal Geophysical Research Letters.

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