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In Our Solar System, Their are eight planet around the Sun where Mars is the Fourth(4th) planet from the sun and the seventh(7th) largest planets, The meaning of Mars in Greek is “Ares”: The God of war, Planet get this name because of the red color of this planet, That’s why Mars planet is called red planet. The name of the month March derives from Mars. Though Mars is much smaller than Earth, its surface area is about the same as the land surface area of Earth. The first spcecraft to visit mars was “Mariner 4” in 1965.Now We describe all important point about the MARS PLANET and they are given below-Lets start,Facts About the Mars planet and Moon:Question- Which is the second smallest planet is our solar system after mercury ?Answer- Mars is the second smallest planet in our solar system.Question- Why Mars planet surface is red ?Answer- Mars planet surface is red because the reddish iron oxide prevalent on its surface gives it a reddish appearance that’s why we can see the Mars planet  to the naked eye.Question- Their is any atmosphere on Mars planet !Answer- Yes, Mars is a terrestrial planet with a thin Atmosphere.Question- How many moons have Mars planet ?Answer- Mars has two moons, Phobos and Deimos, which are small and irregularly shaped.Question- Is their any presence of water on mars atmosphere ?Answer- No, Liquid water cannot exist on the surface of Mars due to low atmospheric pressure, which is less than 1% of the Earth’s.Question- Is their any presence of Ice on Mars planet ?Answer- According to the NASA reported finding a large amount of underground ice in the Utopia Planitia region of Mars. The volume of water detected has been estimated to be equivalent to the volume of water in Lake Superior.Question- What is the density of mars compare to the Earth ?Answer- Mars is less dense than Earth, having about 15% of Earth’s volume and 11% of Earth’s mass, resulting in about 38% of Earth’s surface gravity.Question- What is pH value of mars soil ?Answer- Mars soil has a basic pH of 7.7 and contains 0.6% of the salt.Volcano and Surface Facts of Martian:Question- Is any Volcano on Mars and what is the name of mars highest volcano ?Answer- Yes, their is volcano on mars and The shield volcano Olympus Mons (Mount Olympus) is an extinct volcano in the vast upland region Tharsis, which contains several other large volcanoes. Olympus Mons is roughly three times the height of Mount Everest, which in comparison stands at just over 8.8 km. It is either the tallest or second-tallest mountain in the Solar System, depending on how it is measured, with various sources giving figures ranging from about 21 to 27 km high.Question- What is the astronomical symbol of the Mars ?Answer- The Astronomical Symbol of the mars is Question- What is the Aphelion and Perihelion of mars ?Answer- The Aphelion of mars is 1.6660 AU and perihelion of mars is 1.3814 AU.Question- What is the semi-major axis of mars ?Answer- The semi-major axis of mars is 1.523679 AU.Note: An Astronomical Unit (AU) is the average distance between Earth and the Sun (150 million kilometers).Question- What is the orbital period of mars ?Answer- Orbital period of mars is 686.971 days (As per Earth Days)Question- What is average orbital speed of mars ?Answer- 24.077 km/s is the average orbital speed of mars.Question- How many satellites mars has ?Answer- Mars has two natural satellites- Phobos. Deimos.Question- What is the diameter of mars satellites ?Answer- Mars has two relatively small natural moons, Phobos (about 22 km in diameter) and Deimos (about 12 km in diameter), which orbit close to the planet.Question- What is the surface pressure of mars ?Answer- The surface pressure of mars is 0.636 kPa or 0.00628 atm.Atmosphere and Geographical Facts of Mars Planet:Question- What is the composition by volume on mars ?Answer- The Composition by volume on mars is volume 95.97% carbon dioxide.1.93% argon.1.89% nitrogen.0.146% oxygen.0.0557% carbon monoxide.Question- What is the mean radius of mars ?Answer- The mean radius of mars is 3,389.5 km.Question- What is the Equatorial and polar Radius of mars ?Answer- The Equatorial Radius and Polar Radius of mars is 3,396.2 km and 3,376.2 km.Question- What is the surface area of mars ?Answer- The surface area of mars is 144,798,500 km and 0.284 Compare to the earth.Question- What is the volume of mars ?Answer-  The volume of mars is 1.6318*10^11 km and 0.151 compare to the earth.Question- What is the mass of mars ?Answer- The mass of mars is 6.4171*10^11 kg and 0.107 compare to the earth.Question- What is the mean density of mars ?Answer- The mean density of mars is 3.9335 g/cm.Question- What is the surface gravity of mars ?Answer- The surface gravity of mars is 3.77 m/s or 0.376 g.Question- What is the escape velocity of mars ?Answer- The escape velocity of mars is 5.027 km/s.Question- What is the sidereal rotation period of their axis of mars ?Answer- the sidereal rotation period of their axis of mars is 24 hour 33 minute 22 second or we can say that Mars one day is equal to the 24 hour 33 minute 22 second.Question- What is the equatorial rotation velocity of mars ?Answer- the equatorial rotation velocity of mars is 868.22 km/h or 241.17 m/s.Question- What is minimum temperature of mars surface ?Answer- Minimum temperature of mars surface is -143 degree centigrade.Question- What is maximum temperature of mars surface ?Answer-  Maximum temperature of mars surface is 35 degree centigrade.Question- What is mean temperature of mars surface ?Answer- Mean temperature of mars surface is -63 degree centigrade.Some More Interesting Facts about the Planet Mars-Mars and Earth have approximately the same mass.Mars is either the tallest or second tallest mountain in the Cosmos.Mars has the largest dust storms in the solar system.The Phoenix lander directly sampled water ice in shallow Martian soil on July 31, 2008.Mars lost its magnetosphere 4 billion years ago,Due to the numerous asteroid strikes.Mars’s average distance from the Sun is 230 million kilometers.A Martian year is equal to 1.8809 Earth years, or 1 year, 320 days, and 18.2 hours.The closest distance between Earth and Mars will continue to mildly decrease for the next 25,000 years.You can also check the Mercury Planet : Interesting Facts Mercury Messenger