Earthquakes On Mars Reveal Solid Core And Frozen Crust, Challenging Scientists And Expanding Clues About The Formation And Habitability Of Rocky Planets

Written by Felipe Alves da Silva

Published on 08/09/2025 at 14:51

Imagem: IA

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Research Based on Data from the InSight Mission Confirms That Mars Has a Solid Core and a Preserved Crust for Billions of Years, Offering New Keys to Understand the Geological and Magnetic Evolution of the Red Planet

The earthquakes on Mars continue to reveal crucial information about the planet’s interior. Three years after the retirement of the InSight mission, which monitored over 1,300 seismic events between 2018 and 2022, scientists confirmed that the Martian core is not liquid but solid, similar to Earth’s, and that its crust remains virtually unchanged since its initial formation, according to the Global Times.

The data collected by NASA’s module allowed for the identification of how seismic waves propagate through the interior of the red planet. This analysis showed that the solid core is made up of metal alloys and that the Martian crust acts like a “stagnant cap,” preserving ancient characteristics that contrast with the constant movement of Earth’s tectonic plates.

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Solid Core and Absence of Magnetic Field

The core of Mars, contrary to previous belief, does not exhibit significant fluidity. This discovery helps to explain the absence of a global magnetic field, which was lost billions of years ago, leaving the surface exposed to cosmic and solar radiation. This process had a direct impact on the loss of much of the atmosphere and water, reducing the chances of habitability today.

According to information released by international agencies, the study of Mars’ internal vibrations broadens the understanding of how rocky planets evolve after their formation. The comparison with Earth and Venus allows for the identification of patterns regarding the cooling of cores and the consequences for atmospheric protection.

Preserved Martian Crust

Another important revelation is that the crust of the red planet functions as a geological record frozen in time. Unlike Earth, where tectonic plates constantly recycle material, Mars preserves evidence of ancient cosmic collisions and internal processes that shaped its surface. This stability enables the study of the primitive history of the Solar System.

Researchers highlight that part of this crust preserves signs of impacts from giant asteroids, events that may have influenced the loss of the magnetic field. This condition makes Mars a true natural laboratory for investigating how catastrophic events shape planetary evolution.

Lessons for Habitability

The discoveries about Mars also offer lessons for the search for life on other rocky worlds. The comparison between its internal structure and that of Earth allows for criteria to be established regarding which characteristics are fundamental for maintaining magnetic fields, stable atmospheres, and environments conducive to life.

The red planet, therefore, continues to play a central role in space exploration, helping to design future colonization scenarios and to understand the limits of habitability in the Solar System and beyond.

Earthquakes On Mars Reveal Solid Core And Frozen Crust, Challenging Scientists And Expanding Clues About The Formation And Habitability Of Rocky Planets

Research Based on Data from the InSight Mission Confirms That Mars Has a Solid Core and a Preserved Crust for Billions of Years, Offering New Keys to Understand the Geological and Magnetic Evolution of the Red Planet

Solid Core and Absence of Magnetic Field

Preserved Martian Crust

Lessons for Habitability

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Earthquakes On Mars Reveal Solid Core And Frozen Crust, Challenging Scientists And Expanding Clues About The Formation And Habitability Of Rocky Planets

Research Based on Data from the InSight Mission Confirms That Mars Has a Solid Core and a Preserved Crust for Billions of Years, Offering New Keys to Understand the Geological and Magnetic Evolution of the Red Planet

Solid Core and Absence of Magnetic Field

Preserved Martian Crust

Lessons for Habitability

Gaddafi built the world’s largest artificial river under the Sahara — it’s 4,000 km of giant pipes that pump 40,000-year-old fossil water to entire cities in Libya.

The Soviet Union spent 22 years drilling into the Earth’s crust and reached a depth of 12,262 meters — they found water where it was thought impossible, hydrogen bubbling from the rock, granite that is 2.7 billion years old, and temperatures of 180 degrees that melted the drill bits.

Discovery in Africa scares even scientists: a study published on April 23 reveals that the crust in Turkana has become so thin that it could pave the way for the continent’s division and the emergence of an ocean in the future, in a gigantic geological transformation.

A German architect built a cylindrical house in 1994 that rotates to follow the sun throughout the day, generates 5 times more energy than it consumes, and was the world’s first energy-positive house.

Two African countries will inaugurate in 4 days an 825-meter bridge suspended 90 meters high over a reservoir — it is the largest of three bridges of a megaproject that will supply millions of people.

During works to build an artificial island in Indonesia, workers dredged 5 million cubic meters of sand from the seabed and found over 6,000 fossils from a lost continent that submerged 10,000 years ago.

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East Africa is at a critical breaking point: the crust is only 13 km thick, plates are moving apart millimeters per year, tension accumulated over millions of years accelerates fractures and could pave the way for the Indian Ocean to split the continent.

Mining company Vale is betting heavily in Maranhão with a green iron megaproject and could influence Brazilian exports by creating a strategic sustainable steel hub for Europe.