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Meteorites found in the Sahara Desert have evidence of water on Mars 4.4 billion years ago



Scientists report that analysis of a meteorite found in the Sahara Desert indicated that water existed on Mars 4.4 billion years ago.

The mineral composition of the Martian meteorite NWA 7533 discovered in 2012 shows the chemical characteristics of oxidation-oxidation occurs when water is formed.

The 84-gram meteorite is named after its landing site in Northwest Africa. It is part of a celestial rock that broke into the Earth’s atmosphere.

Planetary scientists already know that water has existed on the Red Planet for at least 3.7 billion years.

But taking into account the previously determined age of NWA 7533 and its newly discovered mineral composition, the researchers now infer that there are 700,000 years of water present before it is estimated.

As shown in the picture, the value of the Martian meteorite NWA 7533 exceeds its gold weight. The scientist managed to obtain 50 grams of sample for analysis#, but,

As shown in the picture, the value of the Martian meteorite NWA 7533 exceeds its gold weight. The scientist managed to obtain 50 grams of sample for analysis#, but,

Different types of space rocks

One Asteroid It is a large piece of rock left over from a collision or early solar system. Most of them are located between the main belt Mars and Jupiter.

A kind comet It is a rock covered with ice, methane and other compounds. Their orbits take them farther from the solar system.

A kind meteor When the debris burns, astronomers call it a flash in the atmosphere.

This fragment itself is called Meteoroid. Most of them are too small, they evaporate in the atmosphere.

If any meteoroid reaches the earth, it is called Meteorite.

Meteors, meteoroids and meteorites usually originate from asteroids and comets.

If the water on Mars is earlier than expected, it indicates that water may be a natural by-product of certain processes in the early stages of planet formation.

This may help answer the question of where the water comes from, and water may influence theories about the origin of alien life.

Professor Takashi Miguchi, a research author from the University of Tokyo, said: “We performed four different spectral analyses on the samples of NWA 7533-methods for detecting chemical fingerprints.”

“We found strong evidence of magma oxidation.

Igneous rock fragments or rubble in meteorites are formed from magma, usually caused by impact and oxidation.

This oxidation could happen if water existed on or in the Martian crust 4.4 billion years ago, causing part of the crust to melt.

The analysis also shows that such an effect will release a large amount of hydrogen.

‘[This] Mikouchi said: “When Mars already has a strong carbon dioxide adiabatic atmosphere, it will help planetary warming.”

If the water on Mars is earlier than previously thought, it indicates that water may be a natural by-product of certain processes in the early stages of planet formation.

If the water on Mars is earlier than previously thought, it indicates that water may be a natural by-product of certain processes in the early stages of planet formation.

Northwest Africa Meteorology

NWA 7533

Discovery: 2012

Weight: 84 grams

NWA 7034

Discovery: 2011

Weight: 320 grams

About ten years ago, two meteorites were discovered in the sub-Saharan Africa-NWA 7034 discovered in 2011 and NWA 7533 discovered in 2012. Mikouchi and colleagues obtained a sample for analysis.

NWA stands for Northwest Africa, and its number is the order of meteorites officially approved by the International Planetary Science Organization Meteorological Society.

As we all know, these two meteorites are from Mars, thanks to the comparison of evidence collected by the Mars lander.

In order to confirm the Martian origin of NWA 7533, we compared it with NASA’s Viking mission in the 1970s, which landed some of the earliest man-made instruments on the surface of the red planet.

“Some of these meteorites contain gases that match the Martian atmosphere analyzed by NASA Viking.”

According to Mikouchi, NWA 7533 and the more famous NWA 7034 (known as “Black Beauty”) are part of the same set of at least 10 clips, each with a different number.

He told MailOnline: “These Martian meteorites are different from other extraterrestrial materials, but have the same oxygen isotope ratio, so we know they are from the same parent body.”

Shown in the picture is

Shown in the picture is “Black Beauty” or NWA7034. A 2013 study of Martian meteorites determined that it exists for 2.1 billion years and is rich in water

“All these people fell on the earth through the same event, but they may be broken when entering the atmosphere and scattered in the Sahara desert.

Later, people picked them up separately, and the fragments got different names.

In 2013, NWA 7034 was 2.1 billion years old, making it the second largest Martian meteorite after NWA 7533.

Scientists say that the cricket-sized meteorite at the time contained evidence of more water than other Martian meteorites found on Earth.

An American purchased part of NWA 7034 from a Moroccan meteorite dealer and donated it to the University of New Mexico.

Tribal members of the Bedouin tribe have discovered many Martian meteorites that exist today in the Sahara Desert. They know that these rocks can be sold at a considerable price in the Casablanca market.

This new research has been published in “Science Progress”.

What is meteorite NWA 7034-also known as black beauty?

Northwest Africa (NWA) 7034, nicknamed “Black Beauty”, caused the creation of a new type of meteorite when it was discovered in the Sahara Desert in 2011.

The NWA 7034 weighs approximately 11 ounces (320 grams).

After more than a year of in-depth research, a team of American scientists determined in 2013 that the meteorite was formed 2.1 billion years ago.

This started in the most recent geological period of Mars, the Amazon period.

Previous research by Nasa also found that Black Beauty contains approximately ten times more water than other Martian meteorites.

NWA 7034 is composed of basalt fragments made of cement, and the rock is formed from rapidly cooling lava.

The debris is mainly feldspar and pyroxene, most likely from volcanic activity.

The chemistry of this unusual meteorite matches the crust of Mars measured by NASA’s Mars Exploration Rover and Mars Odyssey Orbiter.

Researchers speculate that the large amount of water contained in NWA 7034 may be due to the interaction of rocks with water present in the Martian crust.

Compared with other Martian meteorites, meteorites also have a different oxygen isotope mixture, which may be caused by interaction with the Martian atmosphere.


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