[2016] 4YunHui Shim: Mars "Red Planet"

by karisalomon
Last updated 3 years ago

Discipline:
Science
Subject:
Astronomy
Grade:
6,7,8

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[2016] 4YunHui Shim: Mars "Red Planet"

Mars:The Red Planet

Composition/Structure of Mars: The surface is highly terrestrial with these physical features: Olympus Mons, Tharsis, Valles Marineris, and Hellas Planitia. They are canyons, craters, huge bulges, and mountains. It lacks plate tectonics and there is no evidence of horizontal folding, and movement. There are dry ice. The crust is composed of silicon, oxygen, iron, magnesium, aluminum, calcium, and potassium. The mantle is silicate. The core is composed of sulfur, iron, and nickel.

Mars' Order and Distance from the SunMars is the fourth planet from the sun, and it is the last planet of the inner planets. It is 12.7 light minutes from thr sun. It takes 24 hours and 40 minutes for it to rotate, and it takes 1 year and 322 days for a complete revolution around the sun.

Size of Mars:The diameter of Mars is 6794km, and the mass is 6.4219e23 kg.

The Temperature:The temperature ranges from −123°C to 37°C.

Mars' orbit is 227,940,000 km.

Mars' Exploration and Discovery:Much of our knowledge about the planet itself came from the space crafts, Viking 1, and Viking 2 which landed on Mars on 1967. On 1997, the Mars Pathfinder was landed on Mars. The first mission launched to Mars was a Soviet mission that failed. It was launched on 1960. The Mariner 4, and Mars 2 were also more preceding space satellites to come.

Atmosphere:Mars is a cold planet because its atmosphere is thinner, and the distance from the sun is greater than it is on Earth. Air on Mars is very thin, that the air pressure 30 km above the EArth’s surface would equal the air pressure of it. This means that the air pressure is uncomfortably low, and any liquid substance is vulnerable to quickly be boiled away. As the condition follows, there is only ice in mars.

Fun Facts: It is called the Red Planet. Mars was named by the Romans as the god of war considering its read, fierce and bloody resemblance.

Mars' PhysicsThe density of mars is 3.93 g/cm3. Its gravity is 38% of Earth's.

Interesting Detail in Relation the Earth: Mars is a very cold desert world and it has the half of the diameter of Earth’s and has seasons. Mars also has seasons, polar ice caps, volcanoes, canyons and weather like Earth’s. However, its atmosphere is too thin for liquid water to exist on the surface as Earth does. There are many evidences for liquid water floods. However, the water now exists mainly under icy soil and in very thin clouds.

Summary: Basic Planet Information of MarsThe size of Mars is 6794 km in diameter and its mass is 6.4219e23 kg. The surface is highly terrestrial with these physical features: Olympus Mons, Tharsis, Valles Marineris, and Hellas Planitia. They are canyons, craters, huge bulges, and mountains. It lacks plate tectonics and there is no evidence of horizontal folding, and movement. There are dry ice. The crust is composed of silicon, oxygen, iron, magnesium, aluminum, calcium, and potassium. The mantle is silicate. The core is composed of sulfur, iron, and nickel. The temperature ranges from −123°C to 37°C. This planet originated from the collision of the solar nebula caused planetesimals to form. Conditions don’t favor a human habitation in Mars. Liquid water is said to have existed long time ago by the evidence. Evidence includes water flooding deposits and landforms formed water erosion. It was once known as that Mars contained Martians. It is the fourth planet from the sun, being the last of inner planets. It is 12.7 light minutes from the sun, takes 24 hours and 40 minutes to fully rotate. It takes 687 days to fully revolve around the sun, and the orbit is 227,940,000 km. Much of our knowledge about the planet itself came from the space crafts, Viking 1, and Viking 2 which landed on Mars on 1967. On 1997, the Mars Pathfinder was landed on Mars. The first mission launched to Mars was a Soviet mission that failed. It was launched on 1960. The Mariner 4, and Mars 2 were also more preceding space satellites to come. Mars is a cold planet because its atmosphere is thinner, and the distance from the sun is greater than it is on Earth. Air on Mars is very thin, that the air pressure 30 km above the EArth’s surface would equal the air pressure of it. This means that the air pressure is uncomfortably low, and any liquid substance is vulnerable to quickly be boiled away. As the condition follows, there is only ice in mars. .

By: Yun Hui Shim


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