By studying seismic data gathered by NASA’s InSight lander on Mars, researchers made projections regarding the core size, the composition of Mar’s mantle, and the thickness of its crust.
For the very first time, the scientists got an idea of the appearance of the interior region of a planet that resembles Earth.
In a research publication released on Thursday, July 22, 2021, an international group of more than 40 scientists disclosed how the core of Mars, crust, and mantle differ from the Earth.
A planetary seismologist at the University of Cologne, Brigitte Knapmeyer-Endrun, said that they only have this information for the Moon and Earth. But because of the difference in sizes, the data related to these cosmic bodies are not comparable.
However, in the case of Mars, they consider it as Earth’s terrestrial and tinier twin. The latest research suggests that the red planet’s core is less in density than Earth’s.
Glowing seismic waves through Mars’s core. NASA’s InSight Rover worth USD828 million robotic science stations made a landing on the Planet in November 2018.
Since then, the lander has utilized its seismometers for eavesdropping for similar quakes on Mars.
Seismic waves from 12 of these marsquakes that pass right through the center of the planet and rebound back the layers inside have assisted Knapmeyer’s team in mapping the borders of the core and crust.
Knapmeyer said that the method is like putting a mysterious box under the X-ray to see what’s inside it. Mars’s core is fatter than anticipated.
InSight’s studies propose that Mars has a bulky liquid core that begins roughly midway to the planet’s center, approximately 1,000 miles under the surface. However, a senior scientist said that the planet’s 1,143-mile radius was way more than expected.