NASA’s Mars Insight lander available Researchers with the data needed to give us our first detailed look at the red planet’s crust, mantle, and core. This map does not include any information on structures near its surface, however, and we need to be able to get a more complete picture of how the planet formed. Now, a team of scientists has managed it Increases The first detailed picture of what lies beneath the planet’s surface, showing three billion years of its history, by listening to the winds of Mars.
More precisely, they analyzed ambient noise (in the absence of swamps) collected by a seismometer installed by the InSight lander. On Earth, this type of ambient seismic noise is caused by oceans, human activity, and winds, but only the most recent is on Mars. The Swiss Seismological Service (SED) and ETH Zurich regularly analyze data collected by the seismometer as part of the Marsquake Service. Over the past years, SED has been able to develop methods for analyzing ambient noise data to identify geological structures here on Earth, and these are the techniques they used in the data from InSight.
Based on data collected by the instrument, the top three meters of InSight’s landing site is made of sand, while the next twenty meters are loose material, mainly igneous rocks cracked by meteor impacts. Beneath that sand and rock lie lava flows divided by sediments that formed when the planet was exposed to cold, dry conditions. Researchers believe that upper flows of lava were deposited about 1.7 billion years ago, while the deepest flows were deposited as far back as 3.6 billion years ago at a time when there was a lot of volcanic activity on the planet.
Researchers recently published their studies in temper natureAnd one of the things they emphasized is that it proves that our planet’s exploration technologies can also work on Mars. Other methods used to learn more about Earth can give us more information about the Red Planet, which may one day be had become The second homeland of mankind.
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