Terrestrial Planets Chapter 6

There are many differences among our planets and moons in our Solar System. The geologic activity, composition, interior structure, magnetic field, and atmosphere are all factors that help give these planets and moons there identity. We have sent probes over the years to help examine these properties.

Mercury: the planet mercury is a greyish brown planet that resembles to the moon so much that they are nearly identical. The planet Mercury is, just like the moon, filled with many, many, craters. The planet mercury is the planet closest to the sun or of the eight planets. The planet mercury is also filled with many, many rocks. In our lesson we learned that mercury travels around the orbit in not 88 earth days, but 59 earth days. In 1974, a muggle prove was sent up there to the planet mercury to study it. The planet mercury is, one of the 7 planets that don't have a single life form on it, well that's in any records. The planet mercury is 1,516 miles in size. Next i will move on to venus.

What do you think we would do if someone from anther planet landed in the U.S and claimed it as his territory because he had discovered it? How would you feel about this?

It is believed that only 55% of Mercury has been mapped, however, that 55% has yielded a number of interesting finds, there are three significant geological features on Mercury, these are: smooth plains, intercrater plains and rugged highlands. The smooth plains resemble Lunar Maria, that is, large dark basaltic plains formed by ancient volcanic eruption, found on the Earth’s moon. The Intercrater Plains are impact craters, pocked with a number of smaller craters, which cover 70% of the examined surface. These craters are particularly deep, due to the planets lack of an atmosphere to slow the bodies before impact. The rugged highlands resemble mountainous regions of the Earth; however, there is no evidence of tectonic motions to have caused them. Mercury is made up of predominately iron, its crust is only 500-600km thick and there is evidence of volcanic activity, although it is believed that the planet has been geologically dormant for billions of years.

Mars is the planet that is most similar to earth for various reasons like similar seasonal patterns.

Mercury is a rocky, gray planet that very closely resembles the Earth’s Moon on the surface. Mercury’s surface is full of craters, boulders, and pulverized dust. Its many craters can be tiny or massive. Mercury is geologically inactive, and has been for an extended amount of time. There is an absence of weather on Mercury, and it does not have an atmosphere. Because it has no atmosphere, it cannot control the variations in temperature from day to night, and the temperatures on the planet can range from 90 Kelvin to 700 Kelvin. There are no signs of clouds, rivers (or any other body of water), or dust storms on Mercury. What we know about Mercury and its surface is from information brought back by Mariner 10 and the Messenger mission in the last few decades.

Liquid water is the most important factor for life, as we know it. Water is abundant in the galaxy, it is found in cold dense molecular stars as well as hot stellar atmospheres. Liquid water exists at a large range of pressures and temperature.

Mercury, named after the Roman God of Thievery, Commerce, and Travel, is the first planet from the Sun. It is unique because it shows at both morning rise and evening set of the sun. It is rocky, heavily cratered, covered in boulders, and also pulverized dust. The majority of it's surface bears a strong resemblance to that of Earth's moon. It's lack of atmosphere causes wild temperature fluctuations. Temperatures can range from 90 kelvin to 700 kelvin thus creating a planet, from all observations, that cannot sustain life--it is geologically dead. Mercury also has a magnetic field generated by the planet's core that can deflect solar wind and which has a magnetosphere that changes. This was surprising for such a slow rotating planet--one that rotates completely every 88 Earth days.

Planet surface conditions: Mercury’s surface is similar to our moons. Its surface is littered with deep craters. 3.8 billion years ago was overwhelmed by a huge amount of craters and was believed that the surface was volcanically active.

Mercury is one of the most interesting planets in the solar system. It is the closest planet to the sun in our solar system and has a very short orbitational period. Mercury has a very rough and rugged surface, has temperatures that range from 806 to -292 degrees fahrenheit, and has the biggest basin in the solar system, the caloris basin. As a result, Mercury is the most innermost planet in the solar system and scientist are still discovering new fascinating things about the planet

Mercury surface is very similar to the Moon's. The two main differences between the Moon and Mercury's surface are the size

The Important thing about the inner planets is that they are rocky planets .The inner planets include Earth, Venus, Mercury ,and Mars. They are also slow.But, the most Important thing about the inner planets is that they are rocky. The Important thing about outer planets is they are made up of helium and hydrogen.The outer planets have many moons.The outer planets move faster.The outer planets are gas giants .But, the most Important thing about outer planets is that they are made up helium and hydrogen

Humans have longed to believe in extrasolar planets, as surely there have to be planets elsewhere in the universe. Claims of supposedly discovered extrasolar planets can be dated back to 1855 when Captain S. W. Jacobs from the Madras observatory, claimed that he had discovered a planet orbiting a binary system (Jacobs 1855), all the way up until 1991 when a team of astronomers announced then retracted the alleged discovery of an extrasolar planet around a pulsar star (Lyne and Bailes 1992). Planets are extremely hard to detect as they are a very faint light source and the light from its parent star is much brighter and essentially blocks out light from a planet (Winters 1996). It was not until 1992 when the first exoplanets were confirmed

Mercury which is the planet that is closest to the sun is the first planet I will discuss. Mercury is the smallest of the inner

Comparing the Venus, Earth, and Mars, the Earth has much lower percentage of CO2 than Venus and Mars. The Venus has highest surface temperature and air pressure. Differently, the Mars has lowest temperature and air pressure.