American researchers: Mars may contain a lot of water under the crust

　　China News Agency, Houston, March 16th. NASA (NASA) published an article on the 16th saying that studies have shown that there may be a lot of water under the crust of Mars.

　　The article mentioned that a new study funded by NASA stated that billions of years ago, Mars was a planet covered by oceans and lakes. The depth of the ocean was 330 to 4,920 feet (100 to 1,500 meters), which is about the same size. Half of the Atlantic Ocean on Earth.

Among them, 30% to 99% of the water chemically becomes the hydrous minerals under the crust of Mars.

On March 8, local time, the National Aeronautics and Space Administration released the traces of the "Perseverance" rover achieving Mars walking.

　　This research report was published in the March 16th issue of "Science" and was jointly completed by a number of researchers from the California Institute of Technology.

Its conclusions constitute a challenge to current theories.

Previously, scientists believed that as the temperature of the Martian crust gradually decreases, its magnetic field continues to weaken, and a large amount of water on the surface of Mars escapes into space through the atmosphere.

　　According to the technology media "Space" website, one of the main authors of this report, Eva Scheller, a PhD student at the California Institute of Technology, said that the current atmospheric escape theory does not fully explain what we have about what happened on Mars. Data on the amount of water present.

Scherer believes that on the one hand, the water of Mars disappears into space through the atmosphere, and on the other hand, it becomes water-containing minerals that exist under the crust of Mars through chemical action.

On February 15th, local time, NASA released a simulated picture of the American Mars rover Perseverance landing on Mars.

According to reports, the "Perseverance" rover will land at the Jezero impact crater on Mars on February 18.

The picture shows the "Perseverance" rover separated from the spacecraft.

　　The data model released by the research report shows that Mars lost 40% to 95% of its water during the Noah period between 4.1 billion years ago and 3.7 billion years ago. Mars became an arid planet about 3 billion years ago. .

　　Scherer believes that although there may be a large amount of water-containing minerals under the crust of Mars, this does not mean that astronauts going to Mars in the future will easily extract this water. Some operations must be done to obtain a considerable amount of water.

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