Earth

0.93% Argon

0.04% Carbon Dioxide

## **Overview**

**Earth** (also known as **Gaia** and **Sol Prime** is the third planet in the Sol System and the homeworld of Humanity. It is also the first natural known world with life to Humanity. Earth has one natural satellite, Luna, and an artificially constructed satellite named Selene. Earth is most associated with the New Solar Federation the cultural capital of the said nation. Earth is held in extremely high regard in almost all human cultures, serving as the spiritual homeland of all who bare the title of Mankind. Due to its importance in human history, Earth stands as the single most universally shared object in human culture across the Milky Way Galaxy, and as a result, is by far the most guarded world to humanity as a whole.

Despite how much it is beloved by humans today, the aforementioned species did not seem to worry about the overall care of the planet, letting artificial climate change run rampant throughout hundreds of years, deforesting many life filled forests, causing countless species to go extinct, and pushing the planet's resources to the very brink. But despite all this, humanity would manage to reverse the damage done by their forefathers with time, and they would do all that they could to keep Earth as it was from humanity's beginnings, even halting the natural process of continental shifting.

Most of the energy on Earth comes beamed down from the vast Solar Dyson Swarm. A fairly large chuck of the energy also comes from the clean, renewable energy sources such as solar and wind, as well as newer forms of nuclear fusion that are clean and safe for the environment. A tiny fraction of the energy is from geothermal processes in the Earth's mantle and outer core, while the rest come from buildings themselves.

## **Climate**

Earth has one of the most diverse climates in the entire Sol System. Its climate is varied depending on each hemisphere, with areas warm enough to creating boiling deserts, while others are cold enough to create mazes of icebergs. Temperatures also range from being cold enough at the poles to freeze water and warm enough at the equator to fry an egg on a metallic surface. Each region of Earth has a unique biosphere able to support a variety of plant and animal life.

Earth's overall climate is very temperate, so much so that it's often used as the exact model for a temperate world. Its position in its system allows carbon-based life to flourish across all of the planet's surface, orbiting within a so called Habitable Zone for life of its caliber to exist on.

This climate is also kept in check by the planet's inhabitants, using artificial climate generators in order to keep a desired temperature and climate in the various regions of the planet. These climate generators have also allowed Earth to become more habitable to Earth-life then it was originally.

## **Human impact on Earth**

### **Negative Effects**

As the human species rapidly progressed through the typical technological stages, from the discovery of electricity, to the invention of industrialism, it would have an affect on the wider world around them as man-made carbon dioxide emissions would cause the global climate and temperature to artificially rise. This caused many of the planet's icecaps to melt, endangering the life that inhabited them and raising the sea level.

Along with the climate, the planet's natural resources would almost be exhausted to the very limit thanks to the ever-growing population's increasing demand. Much of the planet's native forest lands would be totally destroyed as they would demolish the trees that make up them for the countless resources needed from them. As well as most of Earth's natural oil and uranium reserves.

Non-biodegradable resources, such as plastic, were also left all across the planet's surface, with particular emphasis placed upon the planet's oceans. Thousands of tons of plastic would be left in the oceans, leading to a process known as: *"Ocean Acidification,"* which in layman's terms, turns the ocean into acid, endangering all life on the planet that relies on the ocean. This is by far the most long reaching affect on the planet early humanity caused, as many thousands of tons of plastic from the 21st century still remains in the ocean to this day.

Earth would also be given countless artificial satellites by humanity, covering the planet's orbit with communication, weather, and mapping satellites, along with orbital telescopes. Though these would grant humanity much understanding of the planet they existed on, it had an unattended side effect, as vast amounts of orbital debris would be created throughout the decades that these aforementioned satellites were in orbit around the planet. This threatened to coat the planet in a blanket of debris, preventing the human species from venturing into the wider universe at all. However with time they were able to mitigated the problem.

The increasing urbanization of the world also caused the extinction of countless forms of flora and fauna, as they are unable to exist within an urban environment. Not only that but humans made a habit of just killing them outright to have access to resources exclusive to them such as ivory.

### **Positive Effects**

Humans have also had a profound positive affect on planet Earth, the first and foremost being the reversing of damage done by them. As the species reached the type one stage, they would gradually remove the excess carbon dioxide emissions created during the 21st century, restoring a more natural climate cycle on the planet.

Not only that, but many extinct species destroyed by humans would be brought back from the dead with the use of cloning technologies. These include the Woolly mammoth, the Dodo, and the Thylacine. Countless other families of flora and fauna have also been brought back into the world. Along with those destroyed by humanity, other species that were long dead by the time of human evolution, such as the trilobite and the dinosaurs were also brought back and were given controlled environments for them to flourish.

Many floating sanctuaries have been constructed across the planet's oceans, allowing many species to live in controlled environments free from any natural or otherwise threats against them. Along with sanctuaries on Earth proper, many have been constructed in orbit around the planet, as well as being placed on other colony worlds.

Thanks to most resources used by the populace being extracted by extra-planetary colony worlds now, the resource strained planet has begun to have its natural resources replenished. These include oil fields, precious metals, fresh water sources, and massive forests to inhabit unurbanized environments on the planet.

The protection of the planet itself is a major aspect of human life on the world. Any asteroid that poses a threat to the Earth and the life that inhabits it are destroyed by humanity before it even crosses a thousand kilometers in the planet's orbit. As well, Earth has remained untouched by any large scale intragalactic or intergalactic conflict involving the wider human species, as its location is often hidden from other intelligent species.

### **Restoration of Earth**

The united human nations of Earth began to fully restore planet in 2,125. With fusion energy, they were able to provide Earth and extra-planetary colonies such as Luna and Mars with near infinite energy. Along with fusion energy, the discovery of seismic generators just twenty standard years later allowed humans to have complete control of the planet's natural continental shifting, meaning they could control the movements of continents across the planet, as well as stopping the process of earthquakes that could devastate cities across the surface.

Along with the restoring of the land, they would use climate generators to remove much of the carbon dioxide emissions made by humanity during the 20th and 21st centuries, essentially solving the global warming crisis. Not only that, but using remote drones, they were able to remove the blanket of orbital debris that surrounded the planet.

The final righting of human wrong would be the resurrection of almost all known extinct species of flora and fauna that inhabited the planet throughout the remaining centuries of the 2,000 through the use of cloning technologies, creating countless floating sanctuaries on both the planet proper, and in orbit around it, as well as other colony worlds across the galaxy.

## **History**

### **Formation**

Planet Earth formed from the planetary accretion disk created from the formation of its parent star, Sol, in 4,540,000,000 BC. As it formed, the planet was a hot hell world completely covered in massive fields of molten lava and magma. However in 4,500,000,000 BC, an ancient Sol planet around six thousand kilometres in diameter nicknamed: *"Theia"* collided with Earth, shattering the former and causing massive amounts of debris to be put in orbit around Earth. This orbital debris would eventually coalesce and form two major moons named Luna and Diana respectively. This event also caused the planet to tilt on its axis about twenty degrees, causing the planet to experience four distinct seasons.

Earth would enjoy the company of two moons for several millions of standard years, however in 4,490,000,000 BC, the smaller of the two moons, Diana, began to have its orbit around the planet slowed by its sister-moon Luna, and it would begin to drift towards the aforementioned body, eventually colliding with it. The two moons would be ultimately torn apart from this event, and the orbital debris would form a singular large major moon sharing the name of the former largest major moon.

Throughout the remainder of the 4,000,000,000 BCs, many rocky asteroids filled with water collided with the planet, slowly cooling down the planet and leading to massive amounts of water vapor to enter within the atmosphere and form thick clouds. These aforementioned clouds would begin to create massive amounts of rain to fall from the sky, creating a global ocean and turning the Earth into a hot oceanic world. In the following millions of years, volcanoes began to spew out massive amounts of materiel, forming the landmasses that would soon become the planet's continents, changing the Earth from an oceanic world to a more earth-like one.

### **Evolution of Life**

In 3,500,000,000 BC, life began to appear in the planet's oceans. This life form was a simple single-celled organism feeding off of hydrothermal vents deep within the ocean. However it would slowly begin to replicate itself and evolve into more complex multicellular organisms, ultimately leading to the event known as the: *"Cambrian Explosion,"* in 541,000,000 BC.

Life would continue to evolve into even more forms of complex life, with life being able to inhabit the lands by 380,000,000 BC. The planet would be absolutely teeming with life, inhabiting all landmasses on the world. Until' unfortunately, in 252,000,000 BC, an event known as the: *"Permian Extinction,"* or the: *"Great Dying"* caused more then 58% of all life on the planet was eradicated by massive volcanic forces, turning the entire landscape of the supercontinent into a volcanic ocean, killing all life that inhabited it.

However, one of the few remaining families of fauna known as the: *"Proterosuchus,"* would begin to rise from the ashes of the world, ultimately evolving into what would become to be known as the: *"Dinosaurs"* in 245,000,000 BC. Dinosaurs would rule the planet for millions of years, spreading themselves across the whole of the planet. However they too would face destruction when a massive asteroid around eighty-one kilometyers in diameter collided with the planet, wiping out all known forms of dinosaur.

And like what would happen with the dinosaurs, mammals would rise from the ashes and take their place as the dominant lifeforms of the planet, existing on all landmasses of Earth. As they continued to propagate themselves, what would become to be known as the*: "Primate"* would evolve in 55,000,000 BCE. Primates would have the advantage of opposable thumbs, allowing easy manipulation of the environment around them.

Throughout even more millions of years, certain primate species began to evolve to walk upright, eventually becoming completely bipedal in 4,000,000 BCE. Along with the new posture, select primate species began to evolve larger brains, causing them to remember key things about their environment, as well as the manipulation of simple tools by 3,000,000 BCE, and the manipulation of fire in 1,500,000 BCE. And by 200,000 BCE, they learned the first forms of language, causing the evolution of what we would come to know as the intelligent species: *"Humans"*. Though they were not alone on the planet, as another intelligent species known as the: *"Neanderthals"* inhabited the landmasses with them. However gradually over time, Neanderthals would be fazed out by humans thanks to crossbreeding.

### **Early Human History**

Humans would begin to spread themselves across the whole of the planet, inhabiting all of Earth's continents by the year 10,000 BC in larger and larger groupings of people. These groupings of people would eventually form the first examples of human society and each would have various sizes of land and technological capabilities. Some Human groups would learn how to plant massive amounts of farmland, allowing for great amounts of food for their respective populace. While others learned how to tame other fauna of their home planet, such as horses, to allow them to travel the land much quicker then they would have been able to do otherwise. And by the year 5,500 BCE sailing was a common technology of human societies, allowing them to travel across the ocean and visit distant continents.

The usage of metals such as bronze and iron would also become a common practice among human civilizations, allowing them to create much more durable tools and increasing productivity. Unfortunately, what would become to be a common practice among the species, countless conflicts would be waged by various human civilizations for various reasons, though the most common would be the expansion of their respective empires, with several attempting to conquer the entire known world, with the most successful of this time being the Mongol Empire which controlled almost the entirety of the Asia continent.

Long after the fall of the aforementioned empire, the human powers of the Europe and Asia continents were the most powerful forces on the planet, and the European powers had ambitions to conquer the entire world, particularly the nations of England and Spain. In an attempt to open new trade routes to the Asia continent, they would discover the North and South American continents, and the collective continent of Europe would pillage and conquer the New World, commuting horrible atrocities to the native humans that already inhabited the lands. However with time, the two American continents would be able to beat back their European occupiers, becoming independent nations. Afterwards humans would discover and colonize both the Australian and Zelandia continents.

Exploration and colonization of the planet would be one of the chief goals of humanity after the discovery of the Americas, as they believed that the world was made up of massive landmasses. However after areas like the Falklands Isles, and the Polynesian Isles were discovered, it was believed at the time that all that remained of the world were small islands. Unknown to them at the time, there was one more large continent, located at the planet's absolute south pole, and it would finally be discovered by humans in 1,816, and they would name it Antarctica. However thanks to its inhospitable nature, and the current technological capabilities of humans at the time, they were unable to colonize it, and they would remain unable to for many years to come.

After the discovery of electricity in 1,879, humanity began to discover more and more technologies at an extremely fast rate. From industrialism, covering the planet with massive factories. To the early space age, dotting the planet's orbit with countless satellites humans would evolve along the technological stages at an anomalously fast rate. this technological progress would be slingshot in heights after the two respective conflicts that involved almost the whole of the planet, culminating with the discovery of the possible end of the world, that of nuclear weaponry, though they were extremely restrained in their use.