The atmospheric pressure on Mars depends on how high or low the land is elevated. Mars atmospheric values are as measured by NASA’s Curiosity rover. While Earth is home to many forms of life, whether any exists on Mars at all remains a question. Average atmospheric pressure is 7 millibars, compared to 1,013 millibars on Earth. I don’t begin to understand how comparing human life to mars applies. There was once a time when Mars was conducive to hold water but that changed due changing factors. The atmosphere has evolved: evidence on the surface suggest that Mars was once much warmer and wetter. Without much atmosphere to protect it from heat loss, temperatures on Mars are much colder. In addition, Earth has a mass that is 10 times greater. Mars is about half the size of Earth by diameter and has a much thinner atmosphere, with an atmospheric volume less than 1% of Earth’s. The ExoMars Trace Gas Orbiter is capable of sniffing out the composition of the planet’s trace gases  – which make up less than 1% by volume of a planet’s atmosphere – in minute amounts. On Earth, living organisms release much of the planet’s methane. On Olympus Mon’s peak, Its pressure is at 30 pascals (0.0044 psi) and in the lowest point of Hellas Planitia it … Greater stability on Mars results in the preservation of much older features, some dating back to about four billion years. In comparison, Earth's surface is two-thirds water. Idoits I hope you are reading this it on the web duhhhhhhhhhhhhhhhhhhhhhhhhhh. In contrast, Mars' is stable, although there still appears to be some magma flow underground. Mars’ atmosphere is thinner compared to that of earth. Because of its much smaller size and mass, Mars cooled at a much faster rate than Earth, following its initial formation. According to NASA Quest, average temperature in the mid-latitudes are minus 50 degrees Celsius (minus 58 degrees Fahrenheit). This makes its geologic state very different from Earth's. Other Quorans have mentioned * lower gravity, simple heat can give the gas molecules escape velocity. Among many other things, Earth’s atmosphere protects us from much of the sun’s harmful radiation, provides us with oxygen to breathe and burns up any space junk or meteorites before they hit Earth. Q: Why is the atmosphere on Mars so thin compared to the atmosphere of Earth? • Earth takes 365 days to go around the Sun. In addition, water had a role in the history of both. This is where mars atmosphere stops and space begins. The planets in this graphic are not to scale. Both planets have dense cores and hard exterior crusts. its interesting really i do quite enjoy to learn other things but i beleve its only a theiry to whom really understands the univers only one can answer that ! The Mars Ocean Hypothesis even goes so far as to suggest that Mars was once made up entirely of water due to the current atmospheric pressure found in Mars today. The diameter of the earth is 12, 742 km while that of mars is 6, 779 km. Earth and Mars are planetary neighbors in the solar system, sharing some features, such as a rocky composition, and having differences, such as size and temperature. Mars has a very thin atmosphere that consists mostly of carbon dioxide. Why not? Also, its lower gravity resulted in the faster loss of volatile materials, such as water and gases. The atmosphere of Mars is less than 1% of Earth’s, so it does not protect the planet from the Sun’s radiation nor does it do much to retain heat at the surface. The Atmosphere of Mars. The atmospheric composition is also significantly different: primarily carbon dioxide-based, while Earth’s is rich in nitrogen and oxygen. It is also the main component of naturally occurring hydrocarbon gas reservoirs, and a contribution is also provided by volcanic and hydrothermal activity. A planet’s atmosphere determines much of what happens on its surface. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Dust fills the atmosphere so the sky above mars has a rusty color. Mars’ atmosphere is composed of four regions, the Lower Atmosphere, Middle Atmosphere, Upper Atmosphere and the Exosphere. The temperature in this region is very high because of heating from the sun. The Earth's outer crust is always moving. Average atmospheric pressure is 7 millibars, compared to 1,013 millibars on Earth. Argon makes up 1.6% and the remaining percentages make up traces of water, oxygen and methane. Mars’ atmosphere is thinner compared to that of earth. Lee holds a Bachelor of Science in biology from Reed College, a naturopathic medical degree from the National College of Naturopathic Medicine and served as a postdoctoral researcher in immunology. Without much atmosphere to protect it from heat loss, temperatures on Mars are much colder. You have already liked this page, you can only like it once! The atmospheric pressure on Mars depends on how high or low the land is elevated. In other words, Earth is bigger than Mars. Although making up a very small amount of the overall atmospheric inventory, methane in particular holds key clues to the planet’s current state of activity. It makes up about 95% of the atmosphere with other gasses like nitrogen composing 3%. It is divided into plates that move laterally. The only possible “life” on Mars would be some very simple, very rugged bacteria. The diameter of Mars is about 6,786 kilometers (4,217 miles), compared to that of Earth, which is about 12,756 kilometers (7,926 miles). Mars is nearly twice as large as the Moon and a little over half the size of Earth, according to the Center for Mars Exploration. At the moment only solid and vapor forms of water may exist on the higher parts of Mars. Without our precious atmosphere, life on Earth wouldn’t be possible. The person before me is a idiot because they dont know how to frecking spell and so does the briane.I mean duhhhhhhh people they are like in Elematry school duuhhhhhhhh. On Olympus Mon’s peak, Its pressure is at 30 pascals (0.0044 psi) and in the lowest point of Hellas Planitia it can get as high as 1,155 pascals (0.1675 psi). Since that time, both planets slowly cooled and formed into the spherical shapes you see today. Both Earth and Mars are believed to have condensed out of a massive cloud of hot gases around the sun about 4.6 billion years ago, according to the European Space Agency. Earth’s surface pressure is 180 times greater than the surface pressure on Mars. Evidence has been found to suggest that the atmosphere of Mars has changed over the course of a few billion years. Its average pressure would be 600 pascals (0.087 psi). The scale height of Mar’s atmosphere is around 6.8 miles (11 km). Although water may once have existed on the surface of Mars, it disappeared long ago for unknown reasons. Because of the key role natural biology plays in Earth’s methane production, confirming the existence of methane on Mars, and distinguishing between its potential sources, is a top priority of the ExoMars Trace Gas Orbiter. Carbon Dioxide makes up the predominant gas in Mar’s atmosphere. The Middle Atmosphere is composed of a jet stream.