Mars is differentiated, which—for a terrestrial planet—implies that it has a central core made up of high density matter (mainly metallic iron and nickel) surrounded by a less dense, silicate mantle and crust. [4] Like Earth, Mars appears to have a molten iron core, or …

2023年10月25日 · Both the new studies reveal the liquid iron core of Mars is surrounded by a previously unknown layer of soft molten silicon-rich rock about 93 miles (150 km) thick.

2021年7月22日 · At the heart of Mars is the core, which has a radius of 1,137 miles (1,830 kilometers). Confirming the size of the molten core was especially exciting for the team. “This study is a once-in-a-lifetime chance,” said Simon Stähler of the Swiss research university ETH Zurich, lead author of the core paper.

Quakes rumbling through Mars have been detected rolling through its gooey core for the first time, giving scientists the tools they need to figure out what, exactly, Mars' heart is made of. According to seismic data obtained using NASA's InSight lander , which monitored the red planet's innards for four years, Mars' center is a liquid iron ...

2023年5月3日 · Researchers were recently able to finally confirm the makeup of Mars’s core using seismic waves that traveled through the planet. Thanks to NASA’s InSight lander, we can now be certain that...

2017年9月6日 · This review summarizes the knowledge of Mars’ interior structure, its inferred composition, and the anticipated seismological properties arising from its composition with particular focus on Mars’ core. The emphasis on the core stems from the unusual morphology of the liquidus diagram of iron at moderate pressures when enriched in sulfur.

2023年10月25日 · Using multiply diffracted P waves and first-principles computations of the thermoelastic properties of liquid iron-rich alloys, we show that the core of Mars is smaller and denser than...

2023年11月1日 · By analysing the seismic energy that vibrated through the planet after the impact, researchers have discovered a layer of molten rock that envelops Mars’s liquid-metal core. The finding,...

2021年7月22日 · Mars’s core is big enough to block Tharsis’s S-waves from making their way to InSight, preventing the spacecraft from detecting any marsquakes occurring there.

2021年7月23日 · The size of the martian core, the crustal layering, and the thick lithosphere provide important insights into the thermal and dynamic evolution of Mars. Over the coming years, as more marsquakes are measured, scientists will refine these models of the red planet and reveal more of Mars' enigmatic mysteries.