Earth (also known as Gaia, Sol Prime, Sol III, Terra, or Tellus) is the third planet in the Sol System and the homeworld of Humanity. It is also the first natural known Me-Class world to Humanity. Earth has one natural satellite, the Moon.
Earth is most associated with the Federations of United Star Systems as it is the birthplace of Humanity and the diplomatic capital of the FUSS.
As of 200000, the Earth has been through countless events and has many experiments conducted on her. Earth is currently a paradisiacal housing planet, one of the top tourist destinations in the Milky Way, and busy trading hub. Many green megacities can be observed from orbit. Some megacities even reside in the vast oceans.
Most farming on Earth is completed by massive farming towers built in places where conditions were hostile in the past. These farms comprise of up to 32% of the food income on Earth. About 6% of the crops come from large floating farms on the oceans, which are powered hydroponically. The remaining 62% of the food comes from imports.
The Earth is much greener than it was back in the earlier ages thanks to the population crash and subsequent ruralization of most of the large cities. Each building, home, and megacity is required to have small plants or grass growing by them as well as in their lawns. There were even a few cities that were closed off and abandoned.
Most of the energy on Earth comes from 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.
Earth formed 4.57 billion years ago from Sol's accretion disk. Within the first 30 million years, an object named Theia collided with the proto-Earth, the debris of which coalesced and forming what is now the Moon.
Within the first billion years of its history, Earth's primordial seas produced the very first organisms, which began to affect the surface of the planet as well as helped construct the proto-atmosphere. The earliest life, organic unicellular lifeforms, evolved around 4.1 billion years ago in the seas of the young Earth.
Earth has undergone many climatic disasters in its day, including mass extinction events, global ice ages, and warming periods. Around 300000 BCE, the earliest evidence of homo sapiens appeared in Africa and spread across the world, becoming the dominant species.
The first evidence of the rise of civilization began around the year 10000 BCE around what is known as the Fertile Crescent, where humans developed the means and tools necessary to farm crops, raise cattle, construct settlements and build kingdoms and nations. From this, civilization eventually spread to the entire world.
Being the homeworld of Humanity, the global population is around 6 trillion currently, far over what the natural holding capacity is. The population numbers exclude the inhabitants of orbital habitats and space cities. Most of the population resides in the dense megacities, which reach far into the atmosphere, while the rest live in parts of reclaimed nature, mostly farming for fun.
Earth is a very diverse world culturally, as it contains thousands of regions, some of which still follow fragmented state borders.
The planet currently houses seven continents, North America, South America, Europe, Asia, Africa, Australia and, Antarctica, Each of these continents holds a population of trillions of individuals, larger then entire colony worlds. Separating these continents are five distinct oceans known as the Atlantic, Pacific, Indian, Arctic and Southern Oceans respectively.
Across these continents are many different landscapes such as forests, plains, wetlands, deserts, tundras, badlands and so on. Thanks to this extremely varied geography, Earth is rather famous for the geodiversity of its respective landmasses.
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.
In celebration of Vega becoming Earth's new North Star around the year 14000 CE, a petition went through the terrestrial governments, pleading for a beautification type project, as everyone was obsessed with physical beauty at that time as well as making Earth look elegant in comparison to other worlds. Many asteroids and comets were diverted and eventually crashed into each other in controlled collisions. A few smaller asteroids were placed in orbit to keep the rings from degrading, and trillions of nanites were released to construct the rings.
As well as breaking apart the asteroids and comets, the nanites were responsible for giving the color of the rings. The nanites then rained down after completing their tasks, forming the most brilliant meteor shower seen on Earth in millennia. The ring system has since remained stable.
After the War of the Decamillenial Transition and the Split of the Confederacy, Earth was left with only one billion inhabitants, mostly the richer who used automation to live and survive. The descendants of those evacuated began to slowly come back, although the majority had made new worlds for themselves, most notably three copies of Earth using Terrashaping. By the year 21000, Earth's megacities had been repopulated. By 25000 CE, the population remained steady at 30 billion, with much of the people residing within the megacities. The land on and near them was given time to fallow and regrow.