New Research Reveals Mars' Innermost Core is Solid Metal, Challenging Previous Beliefs
Scientists, using NASA's InSight data, confirmed Mars' innermost core is solid metal, similar to Earth's, overturning prior assumptions. This discovery was published in Nature.
Overview
A Chinese-led research team utilized seismic data from NASA's InSight lander, which recorded over 1,300 marsquakes before its 2022 shutdown, to study Mars' interior.
The study revealed Mars' innermost core is solid metal, akin to Earth's, directly contradicting earlier scientific beliefs that suggested a completely liquid core for the Red Planet.
Researchers found Mars possesses a significantly larger liquid outer core than previously thought, extending up to 1,800 kilometers from its center, encasing the newly confirmed solid inner core.
According to researcher Daoyuan Sun, Mars' inner core may be undergoing crystallization, a process that could have occurred historically and potentially continues today, shaping the planet's structure.
These groundbreaking findings, based on data from 23 weak marsquakes, were published on Wednesday in the prestigious journal Nature, advancing our understanding of planetary formation.
Analysis
Center-leaning sources cover this story neutrally, focusing on the scientific discovery of Mars' solid inner core. They present the findings objectively, detailing the research methods and including expert commentary that both validates the discovery and highlights remaining questions, without employing loaded language or selective emphasis.