The Moon is the only natural satellite of Earth. The distance from Earth is about
384,400km with a diameter of 3476km and a mass of 7.35*1022kg. Through history it has had many names: Called Luna by the Romans, Selene and
Artemis
by the Greeks. And of course, has been known through prehistoric times.
It is the second brightest object in the sky after the Sun. Due to its size and composition, the Moon is sometimes classified as a terrestrial "planet" along with
Mercury, Venus, Earth and Mars.
Origin of the Moon
Before the modern age of space exploration, scientists had three major theories for the origin of the moon: fission from the earth; formation in earth orbit; and formation far from earth. Then, in 1975, having studied moon rocks and close-up pictures of the moon, scientists proposed what has come to be regarded as the most probable of the theories of formation, planetesimal impact or giant impact theory.
Formation by Fission from the Earth
The modern version of this theory proposes that the moon was spun off from the earth when the earth was young and rotating rapidly on its axis. This idea gained support partly because the density of the moon is the same as that of the rocks just below the crust, or upper mantle, of the earth. A major difficulty with this theory is that the angular momentum of the earth, in order to achieve rotational instability, would have to have been much greater than the angular momentum of the present earth-moon system.
Formation in Orbit Near the Earth
This theory proposes that the earth and moon, and all other bodies of the solar system, condensed independently out of the huge cloud of cold gases and solid particles that constituted the primordial solar nebula. Much of this material finally collected at the center to form the sun.
Formation Far from Earth
According to this theory, independent formation of the earth and moon, as in the above theory, is assumed; but the moon is supposed to have formed at a different place in the solar system, far from earth. The orbits of the earth and moon then, it is surmised, carried them near each other so that the moon was pulled into permanent orbit about the earth.
Planetesimal Impact
First published in 1975, this theory proposes that early in the earth's history, well over 4 billion years ago, the earth was struck by a large body called a planetesimal, about the size of Mars. The catastrophic impact blasted portions of the earth and the planetesimal into earth orbit, where debris from the
Celestial objects have amazed the human race ever since history started being recorded. The moon, the stars and all visible heavenly bodies have been studied for thousands of years, millions of people over the decades have dedicated their lives to researching these wondrous objects. The moon alone has been the subject of not only research but endless discoveries as well, and for many others, the moon was a goddess. According to Donald J. Frederick, ancient civilizations like the Mayans deemed the moon as a feminine entity, they worshipped the moon in order to get pregnant. The Greeks called the goddess of the moon by the name Selene, and also adored it. Copious other ancient civilizations saw the moon with great reverence as well. Others have taken the time to decode what ancient writings say of the heavenly spheres, the Bible specifies that the moon, sun, and the stars are used by God to mark the different seasons. According to Dennis McCarthy from the U.S. Naval Observatory, to be able to distinguish between seasons, one uses the location of the sun with respect to the stars, to be able to tell from day and night, one uses the rising and setting of the sun, and to be able to tell between months, one uses the phases of the moon. In that respect it can be assumed that the Bible, which was written more than two thousand years ago, was indeed, correct. But what about the portions that say that those same celestial bodies are used by God as divine signs?
In the beginning of the creation of Earth volcanoes erupted all over the planet. During this period there was a time where a brief cooling period was allowed to take place. When this period took place evaporation caused a downpour of rain which flooded the ocean creating the ocean. At the time that ocean was averaged at 3,000 degrees Fahrenheit. Around this same time an asteroid so powerful hit the Earth knocking off a large chunk of it. This chunk became the moon which at the time was twice as close as it is today. The hitting of the planet Earth cause such a shake that many new undersea volcanoes began spewing forth molten rock and gasses. These gasses and other particles formed on the oceans surface and with the moon being so close were smashed together by strong and violent waves.
...tioned. What caused the tidal wave is still a mystery, although many people believe it was caused by volcanic eruption, or a large meteorite crashing into the Earth’s surface.
Still, I believe the moon does affect us. Put me in a storm cellar, I'll guess when the moon's at apogee. It’s that feeling you get on a rolly coaster, the momentary pause at the top of the hump before all that stored kinetic energy is released and you plummet over the precipice.
Armageddon begins by showing the destruction of the Earth by an asteroid 65 million years ago, when the dinosaurs inhabited the earth. According to the narration, the asteroid is said to have been six miles wide, with the power of 10,000 nuclear weapons. The after effects were trillions of tons of dirt and rock thrown into the atmosphere, creating a blanket of dust that the sun was unable to penetrate for 1,000 years. The narrator explained that it happened once, and that it would happen again, it was only a matter of when.
The Sun is a huge, bright sphere that is mostly made up of gas that is about 5 billion years old. The Sun is the closest to the Earth, it is 145 million km distant (this distance is called an Astronomical Unit). The next closest star is 300,000 times further away. There are probably millions of similar stars in the Milky Way galaxy (and even more galaxies in the Universe), but the Sun is the most important to us because it supports life on Earth.
There are five basic theories in the formation of our moon. The first is the "fission theory" which states that the moon was once a part of earth, but separated a long time ago. The second theory is called the "capture theory". This theory is says that the moon formed somewhere else, and was "captured" by earths gravitational pull. The third theory is called the "condensation theory" this theory states that the moon and earth were condemned together from the original nebula that formed our solar system. The fourth theory called the "Colliding Planetesimals Theory" states that the interaction between the earth orbiting the sun, and the sun orbiting planetesimals, which are large Astroid like rocks, led to the breakup and formation of our moon from the debris of these planetesimals. The fifth and final theory is called ...
...lieve that millions of years ago, a piece of rock as big as Mars hit the Earth, and the collision blasted a huge amount of rock into space, and the shattered pieces of rock went into orbit around the Earth. Over millions of years, the rocks clumped together to form the moon, and now it is not the pieces of rock that orbit the Earth, but the moon itself. Scientists, Native Americans, and many other people have their theories of how the moon became, but none have been proven. Scientists have studied the moon for many years, and have proven many theories, but not this one.
Some of the various theories proposed include; The big bang theory The big bang theory argues that the cause of the extinction of dinosaurs was as a result of an asteroid from space that crashed into earth some 66 million years ago resulting in a chain of event that led to the extinction this amazing creatures. This is the most widely accepted theory of the extinction of dinosaurs as it provides solid proves to back the argument that an asteroid from space was
One argument that supports the panspermia theory is the emergence of life soon after the heavy bombardment period of earth, between 4 and 3.8 billion years ago. During this period, researchers believe the Earth endured an extended and very powerful series of meteor showers. However, the earliest evidence for life on Earth suggests it was present some 3.83 billi...
illuminance: It is the amount of visible light coming also from the sun but at a perspective point on a surface at a specific angle. It is also illustrated as being a point where luminous flux is being measured by per unit area which is referenced "In the law of physics book" in 2002. The parameter unit to measure it is called lux or lumen. For example: if getting a torch and putting it perpendicular to the in front surface, circles produces till the spot increases in area.
Even with all the technology we have today, scientists still do not know exactly how the moon was formed. There are many theories, but that is all that they are. Two of the biggest, most supported theories are that of the planet Theia and the theory that the moon was formed from loose debris, from Earth's formation, gathered together by gravity. Although, no matter how the moon was formed, all life on Earth benefits from having it. Not only does it affect living animals, humans, and plants, but non-living things too! There are many facts about the moon, and with those facts comes knowledge of benefits.
The moon has two sides, the side that is ever illuminated by the sun, and the side we see, and then there is the dark side; forever cast into the shadows, never to see earth, nor be seen by earth. Similar to the moon, humans never merely have one side but are multifaceted. The character Salome has many different sides, and even more that the characters of the play see, though all the characters do see Salome in the moon. Herod originally only sees Salome as a beautiful erotic creature, however when she requests the head of The Prophet, he sees the corruption within her. He then realizes, “Only in mirrors is it well to look, for mirrors do but show us masks.” However, the moon acts as a mirror for Salome, reflecting to each character a different mask.
• Geologists have discovered meteorites on the earth that have existed for many thousands of millions of years, way before the earth came into existence.