Earth

“”Hi. You're on a rock, floating in space. Pretty cool, huh?

— Bill Wurtz, history of the entire world, i guess

The Earth is one of the 4 rocky planets in our Solar System, the third closest to the Sun. She is the planet that we live on, and the only planet that have been confirmed to harbor life. The Earth is mainly made up of oceans (large bodies of salt water) and dirt. Scientists have speculated that the inside of the Earth contains molten magma and an extremely hard core (but we have never actually been to the insides of the Earth).

According to scientists, the Earth was formed about 4.5 billion years ago. Since then, there have been lots of life on the planet, varying from bacteria, fungi, plants, animals, and more. Humans became the most advanced and dominant species on Earth. Atheists think the truth to the origin of life is the evolutionist Darwinian theory, where all life emerged from a common ancestor (single-celled organism), and with enough time a fish could turn into a human by "adapting" to the environment through changing their genes and creating new genes out from nothing. Theists believes that all things, including this Earth and life was created from a creator or several deities.

Earth doesn't like when her humans fight and cause destruction. In some comics, humans are portrayed as parasites to the Earth, infecting her and making her think crazy things (such as the Sun revolves around Earth). Earth is also the deadliest planet because 99.999% of humans died on Earth

The standard astronomical symbols of Earth are a quartered circle (🜨) representing the four corners of the world, and a globus cruciger (♁).

History

Note: this section is based off of speculation and includes theories that may or may not be entirely truthful.

The history of the Earth is a long one, for sure. The date of the Earth's formation is generally accepted by mainstream scientists is 4.5 MYA (million years ago), though some groups such as the young Earth creationists believe differently due to Biblical implications.

Before Humankind came about and inhabited the Earth, there had been many different planets and lifeforms in the location of "Earth", but eventually their moral failure led them to be destroyed with a few good ones relocated to other celestial bodies.

Hadean Eon (4.5 bya-4 bya)

The Hadean Eon was the earliest stage of Earth's life, characterized by an unliveable environment filled with lava and asteroids. Earth has been formed by combining rocks (planetesimals) that orbits the Sun during around 4567 MYA. She was a hot rock of magma, and not protected by an atmosphere nor magnetic field. "Baby" Earth was very vulnerable.

These early conditions on Earth, with the hostile environment and frequent impacts, eventually gave way to a period known as the Late Heavy Bombardment around 4 billion years ago. During this time, numerous comets and asteroids bombarded the planet. The surface of the Earth was almost entirely molten rock. Riddled with volcanism, the wildly inhospitable planet orbits the Sun further out than it does today. The Earth rotates rapidly, revolving on her axis once every few hours. A day was just 4 hours 10 minutes 4500 million years ago.

Around 4.4 billion years ago, scientists speculate that Theia, a hypothetical Mars-sized planet entity, became too close to Earth and crashed into her, causing Theia to die. The debris of the impact orbited around the Earth, forming a ring. The ring packed onto the Moon in just a few million years. Another theory is that the Earth was spinning really fast and causing a chunk of mass being stretched out and eventually thrown into space, forming the Moon.

Archean Eon (4.0 bya-2.5 bya)

Gradually, around 4000 million years ago, the Earth's surface cooled, forming a solid crust and stabilizing the climate, thus began the Archean Eon. This also allowed for the existence of liquid water. Volcanic outgassing created a primitive atmosphere, and as the planet continued to change, Earth eventually became hospitable enough to support life. The liquid core had formed and created magnetic field, which protected the planet from harmful solar radiation and helped maintain a stable environment. The planetesimals and icy planets from the Hadean had hit the earth, containing Carbon, Nitrogen, Hydrogen and Oxygen, leading to the first ocean to form, but water was too toxic to support life. Rain came down and the landscape shifted and changed. Earth also underwent multiple global ice ages, known as " Snowball Earth".

Proterozoic Eon (2.5 bya-538 mya)

As the atmosphere developed and the planet cooled further around 2500 mya, water began to condense, leading to the formation of non-toxic oceans, and the Proterozoic Eon began. These bodies of water played a crucial role in the development of life, providing a medium in which chemical reactions could take place. The first lifeforms appeared, during near the end of the Precambrian period (all time on Earth before the Cambrian). These lifeforms include bacteria and weird enigmatic, tubular, frond-shaped, and mostly sessile, organisms known as Ediacaran biota.

Phanerozoic Eon (538 mya-)

As the Phanerozoic Eon began 538.8 mya, life took hold of the planet. The next 289 million years, known as the Paleozoic Era, saw the creatures of the waters thrive, and also many plants, amphibians and land-dwelling reptiles appeared. This era had some of the most bizarre looking creatures of all time. The Cambrian Explosion, a sudden increase in more advanced creatures, happened for 13-25 million years (this event could not be explained by mainstream science). Approximately 335 mya, a supercontinent termed "Pangaea" was formed. The Paleozoic also experienced four mass extinction events, the last one being the worst in Earth's history.

Approximately 251.9 mya, life on Earth experienced a great dying, known as the Permian-Triassic Extinction Event. 80%-90% of all species died out, and it marked a boundary between the Paleozoic and Mesozoic eras.

The Mesozoic Era, which lasted 186 million years. This era was dubbed the "age of the dinosaurs" because in this era, the dinosaurs dominated every corner of the globe. By 200 mya during the Triassic-Jurassic transition period, the supercontinent Pangaea began to break apart. After a mass extinction event (usually thought as an asteroid impact) 66 mya, the dinosaurs were completely wiped out.

From the mass extinction of the dinosaurs 66 mya to the present day is known as the Cenozoic Era, where mammals and birds took the dinosaur's throne and became the dominant species group (albeit not as dominant as the dinosaurs). Eventually, no more than one million years ago, the modern human civilization appeared, earliest documented being in the form of Cavemen.

Humans almost instantly dominated the world and became the most powerful and fastest advanced species on Earth. They developed farming, which helped sustainably feed a large population. Many civilizations also recall a "great flood" event that happened long ago. As their technology grew and advanced, humanity became arrogant and have caused great environmental destruction to Earth.

Human Observations (4000 BC-)

As the modern Humankind came about civilization around 6,000 years ago, people began realizing their home. Many different cultures had different views on the Earth and her tendencies. Creation myths in many religions involve the creation of Earth by a supernatural deity or deities.

Ancient Greece (1200 BC-600) believed that Earth was a goddess named Mother Gaia. Later, Ancient Rome (753 BC-476) adopted this goddess and renamed her "Terra". As with Gaia/Terra was a personified goddess in Greco-Roman Religion, so was she in other forms of European Paganism. The Germanics worshipped a goddess named Nerthus, referred to as "Terra Mater" by Roman historian Tacitus. The Nordics worshipped a goddess called Jörð, a giantess often given as the mother of Thor. In today's internet culture, Earth can still be said to be personified as seen on comics made by fans.

Because the Earth seemed flat on the surface, many ancient people naturally thought that the Earth was shaped like a flat disk. However, Ancient Greeks phased out that idea, with philosophers like Pythagoras and Parmenides proposing an idea of the correct spherical Earth during the sixth and fifth centuries BC.

Physical Characteristics

Atmosphere

Earth's atmospheric pressure averages at 101.325 kPa (kiloPascals), with the height being about 8.5 km. A dry atmosphere is primarily composed of 78.084% nitrogen, 20.946% oxygen, 0.934% argon, and trace amounts of carbon dioxide and other gaseous molecules. Water vapor content varies between 0.01% and 4% but averages about 1%. Clouds cover around two-thirds of Earth's surface, more so over oceans than land. Earth is the only planet in our solar system with a breathable atmosphere, for humans at least.

Earth's lifeforms have changed her composition dramatically. For example, around 2.7 billion years ago, photosynthetic organisms released oxygen into the atmosphere. Some of this oxygen formed the ozone layer, 0₃. For reference, "normal" (diatomic) oxygen is O₂. Ozone protects Earth from ultraviolet radiation. As another example, greenhouse gases (such as carbon dioxide and water vapor) have kept Earth warm. Without them, her temperature would be −18 °C (0 °F).

Composition

Earth is a terrestrial planet, meaning she is made of rocky materials. Her most common elements are iron, oxygen, silicon, magnesium, sulfur, nickel, calcium, and aluminium. The remainder (1.2%) consists of trace elements.

Scientists speculate that Earth is divided into four layers. From outside to inside, they are the crust, mantle, outer core, and inner core. The core is mostly made of iron and nickel, while the crust is mostly made of oxides, such as silicates. The mantle is also mostly made of oxides (silicates and magnesium oxides being the most common) and possibly Theia's remains. The average matter density of Earth is 5.51 g/cm³, which, among the Solar System's planetary-sized objects, is the highest density.

Earth can also into magnetic field, thought to be generated in the core. The core is the site of a dynamo process that converts the kinetic energy of thermally and compositionally driven convection into electrical and magnetic field energy. The field extends outwards from the core, through the mantle, and up to Earth's surface, where it is, approximately, a dipole. This field guides many species like birds to fly a certain path when migrating.

Surface Features

Earth holds many unusual surface features due to her unique climate. Her most notable surface features are her continents and oceans, which are the result of plate tectonics. Because of her atmosphere, there is a lack of craters due to erosion. Plate tectonics constantly jostles continents around, sometimes merging them into a single supercontinent. Plate tectonics is also responsible for creating many of Earth's mountain ranges and underwater trenches. The current formation of the tectonic plates have not moved for at least a millennia.

About 70% of Earth's surface is liquid water, with the remaining 20% being land.

Trivia

• Earth is the only planet in our solar system that is not named after a Greco-Roman god/godess (unless you use the name "Terra").
• Earth is the only planet in the Solar System with a singular Moon.

Quotes

“”We treat Earth like a museum. But it's like a chalkboard, constantly wiped clean. And what doesn't get preserved? Gets forgotten.

— Endling Echoes

“”Earth provides enough to satisfy every man's needs, but not every man's greed.

— Mahatma Gandhi

❮

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Relationships

Friends

• Mars - DO YOU HAVE WATER?? TELL ME TELL ME TELL ME!!1!1!1 Also why to my humans always want to go to you? You're not even habitable!
• Venus - My twin sister. You used to look like me… perhaps you had life too. Too bad now you are just a burning pile of acid.
  • EXCUSE ME?!

Neutral

• Buddhism - About time you accept my true shape! I’m not flat! Though I like how you promote peace, truly harmonious.

Enemies

• Great Pacific Garbage Patch - STOP POLLUTING MY OCEANS!!
• Theia - Why did you even came close to me? It costed your life! Also you hit my head pretty hard and now I have a headache and a bunch of debris around me, thanks.
• North Korea - You just think you're better than everyone else, huh?
  • I AM SO SHUT UP

How to draw

An image of Earth, the famous "Blue Marble".

Earth has a drawing rating of intermediate.

Drawing Earthball is moderately easy, but can be difficult when you try to get as much details as possible.

1. Draw a ball.
2. Color it blue, for the ocean.
3. Draw some landmasses in green, brown, tan and every color in between on the ocean.
4. Add some white clouds covering the ball.
5. Add a light shining blue ring around the ball to represent the atmosphere.
6. Add eyes and you’re done!

Colour approximations:

Color Name		HEX
	Blue	#3958B9
	Green	#449F01
	Tan	#D1D08F
	Brown	#B67915
	White	#FFFFFF

Gallery

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  Original infobox image
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  Older version, with background and text
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