The Moon - Introduction
Its hard to imagine the history of Earth without our Moon. For as long as man walked this Earth, the Moon served as "lesser light for the night" and faithful time-piece. The phases of the Moon were used to help guide the Harvest, or help determine the time of the river floods.
How our Moon came to existence is still under speculation. There are several possible scenarios:
Fission Theory - the Earth spinning so fast during early formation that a piece broke off forming the Moon
Capture Theory - the Moon formed elsewhere passed close to Earth and was captured
Co-Creation Theory - the Earth and Moon formed and evolved together
Collisional Ejection Theory - a large piece impacted the Earth and broke off pieces
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This article provides a brief introduction to the types of geological feature to be found on the Moon, to assist in any comparison with other planets and to help the reader decide whether there are any topics they would like to investigate further.
The Moon is a timekeeper, and the luminary that takes over when the Sun sets. In ancient Egypt, this Sun-Moon switchover was embodied by the Sun god Ra and the Moon god Thoth. When the Sun god Ra journeyed into the underworld at night, Thoth took over until Sunrise.
In even earlier, pre-historic times, the count of lunar months, and a lunar calendar, was in use across many cultures. The oldest artifacts show lunar markings on animal bone and carved into cave walls. The Native American elder might say he’s been around for Many Moons. In Japan, there’s a Moon-god called Tsuki-Yomi, which comes from Japanese words that mean moon and counter.(1)
During the late 1800s and well into the 1900s it seemed that every book that described the craters, mountains and other features of Earth's moon was titled The Moon. In my mind this came to stand for an encyclopedia-like series of descriptions of features on the lunar surface. In general, more recent books, especially those by professional scientists, describe the processes that formed and modified the Moon, and the surface features themselves are no longer described systematically. But for many lunar observers and others thinking about the Moon as a place, knowledge
The moon is by far the biggest and most easily recognizable object in earth’s atmosphere that can be perceived by the naked eye on a cloudless night. It is hypothesized that it came into existence nearly 4.5 billion years ago, from residual debris after a planetary body collided with earth. Although, considered the runner-up to the sun as the second brightest object in the sky, its illumination is deceitful, insomuch as the moon is not a source of light, but instead reflects the sun’s illumination from the half of the moon that is in direct alignment with the sun at that time. More readily identified as a satellite of the earth rather than as a planet itself or even a star, it has a diameter a quarter of the size of earth’s size and it
Craters are best observed when the Moon is not full as when light hits the crater at an angle, the raised rum casts a shadow which emphasize the centre’s depth and makes calculation the diameter and depth of the crater easier with a smaller margin of error.
Have you ever considered that the moon may not be exactly what it seems to be? Science says that the moon was a result of the Earth colliding with another planet, causing a rocky mass to break free from the earth and be pulled into orbit by the force of gravity. Conspiracy theorists have considered the possibility that the moon may be something more than just a rocky mass orbiting the earth. A theory that has been created regarding our moon is called The Hollow Moon Theory. This theory tries to prove that the moon may just be a cover or a protective layer around an alien's UFO. It may be hard for some to go against scientific research, but there is a possibility that something other than a collision is responsible for the formation of our moon.
Mostly every planet in our solar system has some traces of iron that can be found. But the moon is unique, because there is little to no iron on the moon. The Moon has an abnormally low density compared to the terrestrial planets (Mercury, Venus, Earth, and Mars), indicating that it lacks high-density iron (Giant Impact Theory For Moon Formation Boosted 1). The density of the moon is 3.346 g/cm3, while the Earth is much denser at 5.52 g/cm3 (Cain 1). The moons low density correlates with the Giant Impact
No one knows how the moon was formed, but there are many theories that people believe. One of these theories is that the Earth used to have two moons that struck one another and formed the moon that we know today. Another theory is that planet Earth and a planet named Theia collided with one another, and the debris from the impact is what we call the moon. The theory that proves the most plausible is the one that claims that the Earth and planet Theia collided. There is some evidence that is able to prove this claim.
Since our, said to be 4.5 billion year old Moon, goes through a series of processes that are shown to be an essential element for Earth. These processes work together for the Moon to exist and to be an essential element of Earth. From different mythologies, the Moon is called different things that developed culture and language. For example, the Romans called the Moon Luna, and Selene by the Greeks. In 1609, Galileo Galilei discovered the 4 largest moons of Jupiter that orbited around another planet. The Moons are also known as the Galilean Moons when discovered.
The Earth's moon has a great deal of mystery and indefinite discoveries left for us to explore. One of the most talked about topics of the Moon is if we are going to be living there in just a few short decades or centuries. Just imagine yourself, for example, weighing 150 pounds on Earth. If you were to live on the Moon, you would feel like you only weigh 26 pounds. That is because the Moon's gravity is only 17% of Earth's gravity. You would float into the dark sky, and if you weren't attached to anything stationary, you would float off into outer space, and probably never return. No doubt that the Moon has been in existence for a long time, there are still many millions of years left for us to explore what the Moon has in store for
“We've found particles of fresh glass in Moon rocks that were produced by explosive volcanic activity and by meteorite impacts over 3 billion years ago. The presence of water on Earth rapidly breaks down such volcanic glass in only a few million years.” Rock samples, impossible to be from earth.
Despite the importance of our moon, us humans have long questioned how it evolved. For centuries, the moon has hid the secrets of its beginnings. There are many ideas regarding the origins of our super-sized moon, but they all began around the same time—roughly 4.6 billion years ago. Ultimately, this search for clues as to the origins of the Earth’s moon have led to two different theories. One idea is simply that the moon is wandering around in our solar system, and it captured it. According to this theory, the early moon passed a little too close to the Earth, and our planet’s immense gravity captured a hold of him. However, if the moon was really a “captured” planet, scientists expected that its constituents will be different from the Earth. In essence, if the moon came from another place in the solar system, scientists would expect it to be made of different material. In the 1970’s, Apollo astronauts collected samples of some of the moons’ rocks and brought them back for comparison. The results shocked the scientific world. What they found is that the composition of the moon was almost exactly the same as the composition of the crust of
Also, the moon has a very interesting history. The moon has no air, water, or life on it. Ancient people had some very odd ideas about the moon. Some of them thought that the dark spots that are on the moon was a man in the moon. Others thought that it could be a woman. Some of them even thought that the moon had mysterious or romantic powers.
The moon is widely believed to have formed when a mars sized object collided into the earth about 4.5 billion years ago this impact was so catastrophic that debris was kicked into orbit around earth which led to the formation of the moon.The moon has eight main phases; new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning crescent, third quarter, and waning gibbous. All of these phases take about 29 days to complete. The phases of the Moon depend on its position in relation to the Sun and Earth. As the Moon makes its way around the Earth, we see the bright parts of the Moon's surface at different angles. These are called "the moon phases”.The moon is the fifth largest planet in the solar system. It's roughly one fourth
The Earth and Moon do have some similarities and differences that are explained by this theory. The Moon, for example, does not have heavy materials like Earth does. One example of a heavy material on Earth is the iron core. Earth has one, and the Moon does not. This is explained by the timing of the impact. If the Moon hit the
The keen interest in knowing whether there is water on the moon has helped inspire several recent lunar missions, partly to see if life is possible but also because any realistic chance of colonizing becomes less feasible. While liquid water cannot endure at the Moon's harsh surface, ice is believed to have survived at the Moon's poles where it is eternally cold. But now there is evidence that there is perhaps a significant amount of water deep in the lunar interior in the layer between the crust and outer core. Researchers Ralph E. Milliken and Shuai Li at Brown University, have used light data and satellite imagery to measure the makeup of volcanic deposits scattered across the moon's mantle and calculated there is as much water as Earth’s
The structure of the Moon's interior is more troublesome to investigate. The Moon's outermost layer is jagged and solid, possibly up to 800 kilometres thick. Underneath the layer of it is a partially molten zone. (Russel, 2005). Its jagged mantle is about 825 miles (1,330 km) thick and contains many rocks which are very rich in magnesium and iron. Magma that was inside of the mantle had come to the surface in the past and erupted for more than a billion years. (Choi, 2014).
At the beginning of the solar system, in our universe, the Milky Way, the Moon (main character) is a planet and has a job to move in order with the other planets as well as the Earth in the solar system in the Milky Way. The planets were in peace until the was formed. The Moon was lazy and did not do its job as a planet, going anywhere and too close to the Earth, causing the oceans on Earth to cover the land by the rain in storms destroying many buildings from towns and homes of many people and the people were drowning, depopulating the people on the lands worldwide.