Earth
Earth is a terrestrial ocean planet located in the Solar System, the 3rd planet from the Sun. It is the home planet of humans, and is currently believed to be the first planet to sustain life, intelligent and otherwise, in the Milky Way Galaxy.
Geography
Earth's surface is predominantly water, at 71%, with the remaining portion composed of terrestrial land. This terrestrial land consists mainly of four continental landmasses, those being Afro-Eurasia, America, Antarctica, and Australia, along with hundreds of thousands of islands. This terrain features intense variation, consisting of mountains, deserts, plains, plateaus, and a myriad of other features and biomes.
Throughout most of human history, the ocean surface at Earth's polar regions would be covered by ice, which would seasonally vary in amount. This ice, in addition to bits of land, permafrost, and ice sheets, would form the polar ice caps, but human expansion has raised the temperature of the planet to a point at which these polar ice caps cannot form.
The natural chemical composition of Earth is mostly iron (~32% by mass), followed by oxygen, silicon, magnesium, sulfur, nickel, calcium, aluminum, and trace amounts of other elements.
Climate
Human activity has absolutely ravaged the planet's natural climate, and has had devastating permanent effects on the entire planet. Natural disasters of nearly all kind are commonplace; the human population that still resides on Earth is constantly subject to strong hurricanes, storms, floods, fires, droughts, heat waves, etc. The globe has gotten so hot that effectively all of the planet's ice caps and tundras have melted. Sea levels have risen, flooding thousands of populated cities beyond habitation, including New York, London, Venice, Shanghai, Hong Kong, Sydney, and many more.
History
This alternate history of Earth is identical to real history, until July 20th, 1969. In real history, the Apollo 11 crew in their Saturn V rocket had launched from Cape Kennedy four days ago, and was minutes away from sending astronauts Neil Armstrong and Buzz Aldrin to detach in the Lunar Module. In our alternate history, at this moment, the Apollo 11 crew had suddenly stopped speaking with Mission Control, where they simultaneously lost all signal with the rocket's systems.
Apollo 11 had gone missing.
Apollo 11 had gone missing.
Included Locations
Designations
Classification | Planet |
Type | Terrestrial, ocean |
Alternative names | Sol III, Terra |
Adjectives | Terran, Earthly |
Location Data
Orbit & Rotation
Star | Sun |
Moons | Moon |
Star system | Solar System |
Spiral arm | Orion Arm |
Galaxy | Milky Way |
Rotation period | 1 standard day
24h 00m 00s |
Orbital period | 365.256363 standard days
1 standard cycle |
Surface Characteristics
Surface gravity | 1 g |
Surface temperature | 67.6 °F (-134 °F to 152 °F)
19.8 °C (-91.9 °C to 66.6 °C) |
Atmosphere
Surface pressure | 1 atm |
Composition by volume | 78% nitrogen
21% oxygen ≤1% water vapor (climate variable) 0.1% carbon dioxide <1% other gases |
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