Mars is a parched planet ruled by global dust storms. It's also a frigid world, where night-time winter temperatures fall to minus 140 C (minus 220 F) at the poles.
is a parched planet ruled by global dust storms. It's also a frigid world, where night-time winter temperatures fall to minus 140 C at the poles.
Mars has a weak remnant of a magnetic field emanating from its crust, but it's a feeble phenomenon that provides little protection.Nature Communications The magnetosphere swaddles Earth like a protective blanket. The Sun's solar wind strikes the magnetosphere, and the magnetosphere forces it to flow around the planet instead of reaching the atmosphere or the surface.
"Recent planet formation theories demonstrate that a large amount of water was delivered to both Mars and the Earth during their accretions, suggesting that hydrogen is possibly a major light element in the core," the authorsin their paper."Despite its importance, so far the Fe-S-H system has been little investigated at high pressures."
The DAC can subject microscopic samples to pressures of hundreds of gigapascals. A laser heated the sample so that the conditions simulated Mars' core. As the team subjected the sample to higher temperatures and pressures, they observed it with X-ray and electron beams to track changes in the material. Not only did the Fe-S-H sample melt, but it also changed its composition.The experiment's results center on the idea of miscibility.
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