What Are The Similarities Between Terrestrial Planets

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.

Planet Earth is the third planet from the Sun and the fifth largest of the planets of the Solar System. Earth’s surface is 71 percent water and is the only astronomical planet currently known where life exists. Earth is our home planet. Scientist and astronomers have studied our planet for Centuries and they have discovered much about our planet. Scientist have gained so much more knowledge of our Solar System in the last half-century after the NASA launched the first spacecraft and travel beyond Earth’s atmosphere has opened up to those who wish to explore. In the following paragraphs, we will discuss Earth and the

Pluto is unlike the other planets in that it has an icy surface instead of a rocky surface, like the inner 4 (terrestrial) planets, or a deep atmosphere, like the next 4 (gas giant) planets.

Pluto, a dwarf planet, and Uranus, a planet, take turns being the most distant of the major bodies of our solar system in reference to the Sun For years, scientists were under the mistaken hypothesis that Pluto was the most distant. Scientists, in an attempt to study astronomical data, learned their hypothesis was inaccurate. Fortunately, it is of the scientists nature to investigate all data. On the basis of the data, the astronomers learned of the fact Uranus and Pluto have intersecting orbits. In addition, during the course of their investigation, they learned much of the nature of Uranus and Pluto.

1. Recall chapter 1 that Earth and Venus are so similar in size and overall composition that they are almost twins. Why did these planets evolved so differently? Why is earth’s atmosphere rich in oxygen and poor in carbon dioxide, whereas the reverse is true for Venus? What would happen to the Earth’s oceans if earth were a little bit closer to the sun?

To compare, all three planets have secondary atmospheres that were produced by volcanoes. To contrast, Venus is too close to the Sun, and was too warm for liquid water to form and without liquid water; the CO2 could not settle out of the atmosphere and dissolve into the oceans. This caused Venus to suffer from runaway greenhouse effect and became hot with an extremely dense and vastly insulated atmosphere. Along with this, UV sunlight destroyed the H2O in the atmosphere. On the other hand, Earth had enough distance from the Sun for liquid water to form and precipitate out into the ocean while the CO2 in the atmosphere dissolved into the oceans and was removed from the atmosphere. The trace amounts of H2O and CO2 in the atmosphere create an insulating layer which is enough to keep the Earth at a mild temperature. Out of the three planets, Mars is the farthest from the Sun. It is possible that Mars had liquid water earlier in its history. The CO2 dissolved into water; however, Mars has less mass than Venus or the Earth. Because of Mars’ smaller mass, it has less tectonic activity and Volcanism stopped early in its formation. This did not allow the atmosphere to be renewed from CO2 or H2O

The reading on terrestrial planets from chapter 6 provides readers with a little insight on the similarities and differences between the planets. These planets include Earth, Venus, Mercury, and Mars. Although these planets have very different properties, they are connected due to their history. There are scientific laws that help people understand, compare, and contrast these planets, such as gravity, chemical composition, and temperature.

Mercury is the closes to the sun and Venus is 2nd close to the sun. Mercury and Venus are inter planets that means they are two of the 4 inter planets. They are not made of gas that is only the outer planets are the only ones that can be made of gas. Venus earth's closest neighbor in the solar system. Venus is the brightest object in the sky after the Sun and the Moon, and sometimes looks like a bright star in the morning or evening sky but I have never seen it before. Mercury is named for the ancient Roman god of trade and profit the roman people believed in many

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

 The material that makes up the earth is similar to those on Earth because they were formed by the same event or they were once part of the same body. The similarities could also be explained by the Earth and moon colliding before they were fully formed and they could have exchanged material. I would expect Mars and Venus to be similar because they all formed in the same area from the same cloud.

By definition from a Merriam- Webster Dictionary a planet is “any of the large bodies that revolve around the sun in the solar system which have a similar body to them”. This is not a very specific explanation and makes it hard to fully grasp what it means; at this you could easily say that in fact Pluto a planet. However if you look at a scientific encyclopedia the definition is much different and more specific. The Access Science Encyclopedia says a planet is “A) a celestial body that is in orbit around the sun B) has sufficient mass for its self-gravity to overcome rigid body forces so that it can assume a hydrostatic equilibrium shape C) clears the neighborhood around its orbit”. This explanation is much different and clearer about

In my opinion, Jupiter and 51 Pegasi B are both amazing and mysterious planets. From Jupiter’s cold temperature and 51 Pegasi B’s very hot/mild temperature. These two planets are extraordinary compared to each other. First, Jupiter is classified as a planet which is in our solar system while 51 Pegasi B is classfied as a exo-planet since it is a planet which is from outside the solar system. The colour varies a lot of dfferences between the two since 51 Pegasi B is a grey colour and Jupiter has a mixture of white, orange, brown, and red colours. Also I’ve noticed that the constallations/gods have abeen theortically compared. 51 Pegasi B is known for the constallation of a Pegasus and and there is the great and amazing greek hero Bellerophon,

our solar system, but they are unimportant compared to the nine major planets. In this paper I will discuss the planets and how they are each unique.

The terrestrial planets are Mercury, Venus, Earth, and Mars. These four planets are the planets that are closest to the sun. Terrestrial means earthlike; therefore, these planets are all earthlike because they have a solid ground. The terrestrial planets are the middle school years. The knowledge learned here orbits the sun. If the knowledge learned at the sun is not retained, a student may have a

Ancient astronomers were able to differentiate between stars and planets, as stars remain relatively fixed over the centuries while planets will move an appreciable amount during a comparatively short time.