Mars

Physical properties,location,movement of Mars

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INTRODUCTION

Mars is the fourth planet from the sun and is the second smallest planet in the solar system, named after the Roman God of War, it is often described as the "red planet".The moons are Phobos and Deimos. The distance from the sun is 141,600,000 mi., the length of day is 1 day(24h) 0h 40 min.
The Beauty of planet Mars
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Location

Mars is relatively close to earth and and it's right between the asteroid belt and the Earth. It remains sort of close to the sun so it can benefit from the heat, but remains far enough away to be protected by any significant change. Mars is 141,600,000 miles from any given time.


My Top 3 Locations on Mars

Rovers

NASA launched two Mars Exploration Rover spacecraft in mid 2003, each carrying identical Rovers. The prime mission of these two robotic field geologists,” was to find signs of past water activity. Spirit arrived in Gusev Crater on January 4,2004. The two Rovers were called “ Spirit and Opportunity”. Opportunity landed halfway around the Martian globe on Meridiani Planum on January 25.Equipment on their instrument Deployment Devices - robotic arms- drilled rock and took the first ever microscopic photographs on Mars.Each rover drove thousands of yards around its landing site. The search for evidence of water was a resounding success, particularly with the discovery of minerals that usually form in groundwater. Opportunity found sedimentary rock that had been laid down in liquid,probably water.Scientists are gaining confidence that Mars could have once supported life.


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Orbit/Movement

Mars is the first planet's orbit to encompass Earths. The planet averages an orbital radius of 2.28 x 10 exponent 8 km and takes 1.88 years or 687 days to me one complete revolution.

Physical properties

.striking red appearance

.Mars is the fourth planet from the sun

.When it is opposite to the sun it is brighter than Sirius( the brightest star )

.large craters

.vast desert

.a lot of Earth like features

.large extinct volcanoes dotting the surface

.eroded channels where water flowed freely

.ice caps covering its poles

.its atmosphere is carbon dioxide(CO2)

.Average temperature day =17 degrees celcius

.Average temperature a night= -143 degrees celcius



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Phobos

larger and closer to Mars. It has a radius of 11.1 km. Phobos is 7.24 times as massive as Deimos. Phobos orbits about 9,400km from the center of Mars , or about 6,000km from the martian surface. Phobos is one of the least reflecting bodies in the solar system, and features one amazing crater called stickney crater.It wasdiscovered by Asaf Hall in August 18,1887.


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Deimos

This is the second moon of Mars, smallest. and is the farthest. It has an average radius of about 6.2 km. Deimos takes 30.6 hours to make one complete rotation around Mars. Deimos was discovered by Asaph Hall in August 12,1887.


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Water

Scientists believe water once flowed on Mars, forming rivers and lakes, even causing floods.As the planet cooled billions ofyears ag, the water evaporated, froze or sank beneath the surface. Some northern Polar soils are estimated to be 50 percent water if heated.


Climate

Of all planets in the solar system, Mars has the most Earth like seasons,. Due to the similar tilts of the two planets’ rotational axes. The lengths of the Martian season are about twice those of Earth’s. As Mars greater distance from the sun, the Martian year is 2 Earth years long. Martian surface temperature vary from lows about-143 degrees celcius ( at the winter polar caps) to heights of up to 35 degrees celcius,( in equatorial summer time). Wide range temperature is due to the thin atmosphere, which cannot store that much solar heat. The planet is also 1.52 times as far from the sun as Earth. The climate has important similarities to Earth’s such as, the polar ice caps and seasonal changes.Mars’ atmosphere has a scale height of approximately 11 km ,60% greater than Earth. The summer temperatures in the south can reach to 30 degrees kelvins.Warmer than the sort of equivalent summer temperatures in the north .Mars also has a lot of dustorms
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Did You Know

.So much water ice exists in the Martian polar regions that scientist’s believe it would flood the whole planet if it melted.

.Mars is always the third brightest object in our night sky after the moon and the planet Venus.

.Seen from the Martian surface the largest moon, Phobos, is only one-twentieth as bright as our own moon appears to us. The smaller Martian moon, Deimos is like a star.

.Phobos and Deimos might be remnants of a larger moon that broke many millions of years ago.


Why Mars Died, and Earth Lived
NASA: Life on Mars Was a Possibility
This is how Planet Mars may have lost its Atmosphere.