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Metallic, non-metallic, compound, or pure substance in any form.
can be considered as minerals.
The minerals on Mars are mainly iron oxides.
At the poles and crowns of Mars there is solid carbon dioxide. and water.
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Viking Probes has conducted experiments to detect possible microorganisms in Martian soil. The experiment was limited to the Viking's landing site and gave a positive result, but was subsequently rejected by many scientists. This is an ongoing controversy.
Extant biological activity is also one of the explanations for the presence of trace amounts of methane in the Martian atmosphere, but people generally agree with other explanations that are not related to life.
In 2000, a Martian meteorite was discovered in Antarctica by the United States and was designated ALH84001. NASA claims to have found some microfossil-like structures on the meteorite, which some believe may be evidence of life on Mars, but others believe that it is just naturally occurring mineral crystals.
At low pressure on Mars, water cannot exist in a liquid state, and can only exist briefly at low altitudes. There is a lot of ice, such as the polar ice cap, which contains a lot of ice. In March 2007, NASA claimed that if all the ice in the Antarctic crown melted, it could cover the entire planet to a depth of 11 meters.
In addition, the subterranean water-ice permafrost can extend from the polar region to a latitude of about 60°.
It is inferred that there is a much larger amount of water frozen in the thick underground ice (cryosphere), which is only possible to release during volcanic activity. The largest in history was when the Mariner's Valley was formed, when a large amount of water was released, causing a flood that carved out many of the valley terrain and flowed into the Chriss Plain. Another, smaller, but more recent, was when the Cerberus fossae was formed five million years ago, when water released formed a glacial sea in the Elysium planitia, traces of which are still visible today.
Direct evidence of the existence of ice on Mars was discovered on June 20, 2008 by Phoenix, who excavated on Mars and found eight white objects, which researchers speculated at the time to be either salt (salt deposits were found on Mars) or ice, and after four days the white grains disappeared out of thin air, so these white grains must have sublimated, and salt does not have this phenomenon. High-resolution** photos by Mars Global Surveyors show the history of liquid water. Although many large flood channels and channels with dendritic tributaries have been discovered, no smaller floods have been found**.
It is speculated that these may have been weathered and eroded, indicating that the rivers are very old. The Mars Global Surveyor High Resolution** has also found hundreds of ravines on craters and canyon edges. They tend to be located on the walls of craters facing the equator in the southern plateau.
Since no partially eroded or crater-covered gullies have been found, it is assumed that they must be very young.
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Mars is basically a desert planet, with sand dunes, gravel, meteorites and no stable liquid water (NASA announced on September 28, 2015 that there is a small amount of water on Mars).
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Mars is actually similar to the Earth, but because it is closest to the Sun, the temperature deviation is large, and it only takes 10 hours to orbit the Sun, so it is said that there are only 10 hours a day on Mars.
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It is speculated that Mars has a core with iron as the main component and contains light elements such as sulfur and magnesium, and the proportion of the core of Mars should be smaller than that of Earth.
The outer layer of the nucleus is thickly covered with a layer of magnesium oxide-rich silicate ground and the surface is rocky crust.
Mars has the lowest density of terrestrial planets, only.
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Mars is known to be a typical terrestrial planet, so Mars has long been considered by scientists to be one of the most likely planets for extraterrestrial life. But the reality is that the surface of Mars is full of desert sand dunes, and there are frequent dust storms all year round. It can be said that the environment is very harsh.
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The soil on the surface of Mars contains a lot of iron oxide, which forms a layer of red and yellow oxide due to long-term exposure to ultraviolet rays. To put it mildly, Mars is like a world full of rust. Because Mars is far away from the sun, the solar radiation energy received is only 43 of that of the earth, so the average temperature on the ground is about 30 degrees Celsius lower than that of the earth, and the temperature difference between day and night can reach hundreds of degrees Celsius.
Near the Martian equator, the maximum temperature can reach around 20. There is also an atmosphere on Mars. Its main component is carbon dioxide, which accounts for about 95%, and very small amounts of carbon monoxide and water vapor.
Mars is smaller than Earth, with an equatorial radius of 3,395 kilometers, half the size of Earth, less than 1 6 times the volume of Earth, and only 1 10 times the mass of Earth.
The interior of Mars, like Earth, has a core, mantle, and crust.
The rotation of Mars is very similar to that of the Earth, with a rotation time of 24 hours, 37 minutes and seconds. A day and night on Mars are slightly longer than a day and night on Earth. Mars orbits about 687 days, and one year on Mars is about two years on Earth.
Mars has two moons. The one that is close to Mars is called Phobos, and the one farther away is called Deimos. Since Mars was considered to be the god of war in Greek mythology, astronomers named its two moons after Ares' two sons, Phops and Dries.
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The main elements of the Martian soil are oxygen, which accounts for about 50, silicon 15 30, iron 15 16, aluminum 2 7, calcium 3 8 and a small amount of potassium, phosphorus, sulfur, chlorine, tantalum, chromium, magnesium, cobalt, nickel, copper, etc. The content of sulphur (1 2 orders of magnitude higher than the average of the earth's crust, potassium is below), and the content of rubidium, strontium, yttrium and zirconium is much lower than that of most of the Earth's igneous rocks. The chemical composition of the Martian soil is characterized by high iron, medium magnesium, calcium and sulfur and low aluminum, its chemical composition does not represent the composition of the original rock, it is likely to be the product of various chemical and weathering of mafic igneous rocks, according to the calculation of mineral composition, the Martian soil is a mixture of 80 iron-rich clay, about 10 magnesium sulfate, about 5 carbonate and about 5 iron oxide, the mineral composition of the mixture is equivalent to chlormorillonite, montmorillonite, magnesium alum, 1% stone salt, About TiO2 and calcite.
Internal structure Mars formed about 4.6 billion years ago, after which it differentiated to form fe-fes nuclei and potassium into iron sulfide. Since the decay of 40 K provides a heat source, a high initial temperature is not required for early differentiation and nucleus formation on Mars. According to the density and equilibrium condensation model of Mars, the thickness of the Martian crust is about 200 km, the iron-rich silicate mantle is about 1200 km, the average Martian core radius is about 1900 km, and the heat flux value of the Martian surface is 43 Erg (centimeter 2·s).
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The minerals on the surface of the earth are mainly iron oxide (red), and most of the rest are sand and gravel (this composition is similar to the earth, but there are too many types to describe in detail), mainly marble (stone), metal oxides, silicon oxides (sand...). It's more than 70 million kilometers from the Earth, and this is not a must, but the Earth and Mars are both elliptical orbits, and the distance between them is changing all the time, and if you need to, I can calculate it separately for you, because the speed of light is 300,000 kilometers per second, so the distance is calculated at the speed of light, which is about 233 seconds, not many light years, but roughly speaking, 365 days in a year, multiplied by 3600 seconds, multiplied by 24 hours, should be light years.
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Mars is the fourth of the eight planets, half the size of Earth, and it is a planet, the last of its kind in the solar system. It is mainly made up of rocks, and this type of planet made of rocks is called terrestrial planets.
The distance from Mars to Earth.
The closest distance is about 55 million kilometers, and the farthest distance is more than 400 million kilometers. Close encounters between the two occur approximately once every 15 years. In 1988, the distance between Mars and Earth reached about 58.8 million kilometers, and in 2018 the distance between the two will reach 57.6 million kilometers.
But on August 27, 2011, Mars was only about 55.76 million kilometers away from Earth, the closest in 60,000 years. However, astronomers estimate that in the 800 years from 1600 to 2400 AD, Mars was only the third closest to Earth. According to the projections, the distance between the two will be about 55.71 million kilometers by September 2, 2366.
By August 28, 2287, the two will be closer, with a distance of about 55.69 million kilometers.
Welcome, hope to help you.
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It is understood that Mars is basically a desert planet, with sand dunes and gravel on the surface and no stable liquid water body, compared with the earth, Mars geological activity is less active, and most of the surface landforms were formed in the more active period of ancient times, with dense craters, volcanoes and canyons.
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There is magma inside the Earth, what is inside Mars, is there any other material?
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There is an antimatter composition, including qualasses and particles.
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Martian energy minerals are not known at the moment (no Martian stuff has been brought to Earth).
Before Mars was much like our current Earth.
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It's a very talented question.
Those with few and large atomic masses on the earth should be more abundant.
Such as gold and so on.
NASA's Mars rover had already speculated in previous months that there might be a large amount of water below the surface of Mars.
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Guan Zhong Encyclopedia Business Card Guan Zhong Guan Zhong (c. 723 BC or 716 BC-645 BC): Ji surname, Guan Shi, name Yiwu, known as "Jing Zhong", Han nationality, a native of Yingshang (now Yingshang County, Anhui) in the Spring and Autumn Period of China, known as Guanzi in history. During the Spring and Autumn Period, he was a famous politician and military strategist of the Qi State. >>>More