Blayne:
Mars: What is the evidence that water once flowed on Mars?
In last couple year’s evidence of water on mars has grown exponentially. The geography of Mars suggests that water was once there. This is because they have found runoff channels in the southern highlands and outflow channels that are almost exact to how they are on Earth, which obviously does have water. The Mars Reconnaissance Observer and Mars Express found deposits of clay in the southern highlands that some researchers say is a strong sign that water was there. Some others argue that the clay could be formed by other elements on Mars, such as wind. Also, the Mars Express detected hydrated’ chemical compounds in the surface of rocks over large areas, which means it
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There is also a lack of recent volcanism.
Venus + Mars: Compare and contrast the evolution of the atmospheres of Mars, Venus, and Earth.
To compare, all three planets have secondary atmospheres that were produced by volcanoes. To contrast, Venus is too close to the Sun, and was too warm for liquid water to form and without liquid water; the CO2 could not settle out of the atmosphere and dissolve into the oceans. This caused Venus to suffer from runaway greenhouse effect and became hot with an extremely dense and vastly insulated atmosphere. Along with this, UV sunlight destroyed the H2O in the atmosphere. On the other hand, Earth had enough distance from the Sun for liquid water to form and precipitate out into the ocean while the CO2 in the atmosphere dissolved into the oceans and was removed from the atmosphere. The trace amounts of H2O and CO2 in the atmosphere create an insulating layer which is enough to keep the Earth at a mild temperature. Out of the three planets, Mars is the farthest from the Sun. It is possible that Mars had liquid water earlier in its history. The CO2 dissolved into water; however, Mars has less mass than Venus or the Earth. Because of Mars’ smaller mass, it has less tectonic activity and Volcanism stopped early in its formation. This did not allow the atmosphere to be renewed from CO2 or H2O
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As technology improves it is even more likely that we will discover more about our solar system. A great current example of this is the claim of ‘Planet X’. Researchers say that there is possibly another planet in our solar system that orbits beyond Neptune but is large in size. Two scientists recently announced evidence that a body nearly the size of Neptune that orbits the sun every 15,000 years. Since it has never been seen, because it only orbits every 15,000 years, scientists and researchers cannot make a factual claim on the body even though there is strong evidence of its
The air is not breathable by humans! Venus's atmosphere also contains traces of extra compounds and elements, such as neon, argon, carbon monoxide, and helium. Atmospheric pressure is over 90 times heavier than that of Earth; sheer crushing power. Clouds of sulfuric acid lay above a layer of carbon dioxide near the crust. These sulfuric clouds block most Muggle attempts to see Venus. On Venus, the climate changes all the time, from an extremely cold temperature to an extremely hot one. The temperature ranges from -364 to 870 degrees Fahrenheit. Venus is the hottest planet in the Solar System, and yet it is Mercury that is the closest planet to the Sun, Venus being second in
There are a few other reasons why Venus cannot sustain human life. One of them is because of a huge cloud that surrounds Venus. This cloud is made up of corrosive acid, which is due to the sulfur from volcanic eruptions on Venus. The second reason is because the atmosphere pressure on Venus is also ninety times stronger than it is on earth, which is strong enough to crush a car. The third and final reason we would not be able to live on Venus is because the atmosphere of Venus is nearly all Carbon Dioxide, which makes the temperatures over nine hundred degrees Fahrenheit.
It is also the brightest in the sky next to the Sun and the moon. This brightness of Venus is caused by the thick clouds of sulfuric acid that reflect sunlight back into space. Runaway greenhouse gases is responsible for the large amounts of carbon dioxide in Venus' atmosphere. Its atmosphere also includes 3.5% of nitrogen and less than 1% of carbon monoxide, argon, sulfur dioxide and water vapor, leaving 96% of its atmosphere with carbon dioxide. The greenhouse effect on this planet is also responsible for Venus being the hottest planet in the Solar System. This extremely dense atmosphere is equivalent to the pressure one would experience when diving 3000ft beneath the ocean and Earth-like atmosphere can be experienced 50-60km above the surface of Venus. Significant temperature changes were not recorded in Venus, thus, day and night temperatures do not differ. This is true for seasonal changes as
Venus' atmosphere is made up of mostly carbon dioxide and some nitrogen. There are also traces of carbon monoxide, argon, helium and neon on the planet. All of these elements make Venus' atmospheric pressure more then 90 percent heavier then the Earth. Closest to the surface is a layer of carbon dioxide, which is covered by a layer of clouds which makes it hard to make out the planet.
Venus' atmosphere and climate has been studied carefully as it is believed this is what our atmosphere may come to be in the future. With an atmosphere made up of approximately 96.5% carbon dioxide and 3.5% nitrogen it has an astonishing atmospheric pressure of about 1352 pounds per square inch - which is approximately 90 times that of Earths.
The planet's atmosphere is also surrounded by thick, acidic, sulfuric clouds. The atmospheric pressure is approximately 90 times that of Earth, and the atmosphere is made up mainly of carbon dioxide, with the remaining 3.5% taken up with nitrogen and a few other elements. The thick sulfuric clouds surrounding the planet make it difficult to view the surface with any accuracy, and the huge pressure and heat below the clouds mean that the atmosphere is not conducive for human-made crafts to survive in the climate. Venus's atmosphere is in constant circulation of the planet, circling it in a mere 4 Earth days. The winds near the atmosphere of Venus are approximately 220mph in order to facilitate this speedy atmospheric rotation, although the winds on the surface are much much slower. In summary, Venus would be a bad (and unpleasant) choice for human habitation, due to enormous levels of atmospheric pressure, very high temperatures, and sulfuric acid
For whatever reason, the planet Mars has always been synonymous with alien life in popular culture. This makes it very interesting to study. Recent studies have taught us a great deal about Mars’ surface, water content and geography as well as suggesting that it may have been capable of supporting life in the past. Further study of Mars’ ice caps, various impact craters and other sources has helped scientists glean information of the planet’s history and the wealth of information that can be gained from its study. Of course, the most popular topic about Mars is its present habitability and presence of life, both of which are still very possible. Mars will be an excellent planet to analyze due to its proximity to earth and its ability to potentially sustain life.
The atmosphere also contains traces of carbon monoxide, argon, helium and neon. The closest layer to the surface of Venus is a thick layer of carbon dioxide, which is much denser and hotter than that of Earth. There is early evidence that sulphuric acid also lay within the atmosphere of Venus, as another layer within those that surround Venus is consisted of sulphuric acid. The atmosphere of Venus circles the celestial body in just four day due to its “super rotation” and “vigorous circulation”. Venus is the hottest planet in our Solar System even though it is further from the Sun than Mercury though, it used to have a climate much like Earths but runaway greenhouse gasses have affected the
Climate Of all the planets in the Solar System, the seasons of Mars are the most Earth-like, due to the similar tilts of the two planets' rotational axes. The lengths of the Martian seasons are about twice those of Earth's because Mars's greater distance from the Sun leads to the Martian year being about two Earth years long. Martian surface temperatures vary from lows of about at the winter polar caps to highs of up to in equatorial summer. The wide range in temperatures is due to the thin atmosphere which cannot store much solar heat, the low atmospheric pressure, and the low thermal inertia of Martian soil.
The atmosphere is so dense that it is the equivalent of being under the sea at about half a mile. Venus also has one of the strongest greenhouse effect of any planet in the solar system due to the large presence of carbon dioxide and sulfur dioxide. Venus' suface is then hotter than Mercury's surface. There is not much variation of the temperature on Venus depending on day and night because there is thermal inertia. Another contributing factor to the climate is that winds are very low. The clouds are also capable of producing lightning. There also is an ozone layer in the atmosphere of
Atmosphere: Venus has a thick layer of Carbon Dioxide as it’s atmosphere, much hotter and denser than Earth’s. Venus’s atmosphere supports clouds made of sulphuric acid, making it impossible to optically observe the planet’s surface.
Venus' atmosphere is made up of carbon dioxide and nitrogen, with small traces of other elements and compounds spread throughout. The lowest layer of the atmosphere is made up of Carbon Dioxide -- this traps heat and energy on Venus and keeps it there. Above this layer lies sulfuric acid, which repels sunlight (this is why Venus is the 3rd brightest object in the sky), and helps trap the heat already on Venus. Because of this greenhouse-type atmosphere, Venus is an extremely hot planet -- the hottest in our solar system. Although being twice as far from the Sun than Mercury, Venus can reach 870 degrees Fahrenheit, whereas Mercury can only reach 800 degrees Fahrenheit, due to the lack of an atmosphere like
To begin my experiment I will research information of several ways that you could potentially get water on Mars. I will look at filtration systems, binding of hydrogen and oxygen molecules and melting of ice that is said to be located on
The atmosphere on Mars is a thin layer composed mostly of carbon dioxide. Nitrogen, argon and small traces of oxygen and water vapor are also present. The atmospheric pressure on Mars depends on how high or low the land is elevated. The atmosphere on Venus is composed mainly of carbon dioxide with minor amounts of nitrogen and trace amounts of nitrogen, helium, neon, and argon. Venus is much denser than earth and thick with clouds of carbon dioxide. The clouds create a greenhouse effect which makes Venus the hottest planet in the solar system.
1993). One thing that differs from Earth is that there is no water liquid on the Venusian surface.