Posts tagged earth
Setup: We are in a alternate timeline where there is a Counter-Earth that always stays perfectly on the exact opposite side of the Sun from our Earth. It has about the same size and mass as our pl...
Premise I am in the formation phase of a fictional world. I would like one of its notable characteristics to be extremely large waves. On Earth, most of our large waves are triggered by earthquake...
Back home, Venus is a twin planet with serious issues. The average surface temperature is 900 degrees Fahrenheit, atmospheric pressure is 92 times greater than ours and carbon dioxide makes up 96%...
By that, I don't mean what type of structures, I mean under which part of the Earth? It's an extremely densely populated nation. As densely populated as many major cities - think Hong Kong and more...
In an alternate Earth, coral has been extinct for over 400 million years. In their place were the following: Bivalvia (clams, oysters, mussels) Cirripedia (barnacles) Canalipalpata (bristle-foot...
So, here's my issue. My setting's central conceit is that a myriad of human societies developed at relatively concurrent times across a large system separated by only a few light-hours. (There are,...
While constructing a planet, with the same mass, volume and overall composition as Earth, how do I know how many tectonic plates should it have? And what does having more or fewer tectonic plates c...
We have a regular Earth as we know it, but instead of humans, there is this worm-like race, intelligent similarly as nowadays humans. Their inner physiology is different from our worms (and not imp...
Is it possible to have a structurally self-supporting hollow Earth where the weight of the shell is balanced against the atmospheric pressure inside? It must be human habitable (gravity is nice b...
What I'm thinking for this question is that some kind of filter is put around the sun by aliens that prevents some kinds of solar energy from passing through but allows other types. Like if it sto...
From 56 to 34 million years ago, Earth was so warm that we have found evidence of jungle plants inside the Arctic Circle. Nowadays, jungles are confined in or near the equator, and those latitudes...
The Situation A colony of 100 teleporters (between the ages of 20-40) have been hidden away living like monks for 1000's of years to prevent their detection. With the death of their old leader, a...
I'm working on a story about another dimension of this same Earth but without the same human development and history. The land and natural conditions would be the same except for the ones directly ...
A ravine the size of the Mediterranean in area and ~15 miles (~ 24 km) deep on average opens up over the course of a few days in the Himalayas. A size comparison of the Mediterranean Sea to the U...
I'm envisioning a series of moons in orbit of a super-earth (ideal) or gas giant. If technically workable, the super-earth would have earthlike gravity, the mass and size aren't important. If it's ...
A planet orbiting an Red m-dwarf is tidally locked to its sun. Can it have a satellite which is not tidally locked to the sun? Also can the satellite be tidally locked to the planet ?
In this alternate scenario, Earth is the third planet in a binary star system. One star is a K-type main sequence star--or "orange dwarf"--that has 80% the mass of a G-type main sequence star--or ...
What would have to happen for a giant tidal wave to wash its way around an entire planet? The planet can be like earth, with the same size, mass, and everything else. However the wave must start wi...
So when I say everything, I mean everything. Humans, animals, plants, fungi, bacteria, all dead. If the bacteria and other detritovores and decomposers can't decompose anything since they themselve...
Imagine a world where the Earth's rotational cycle is 20 hours. It has wreaked havoc on ecosystems that need sunlight. Although some plant life can adapt, others are endangered. Is there a way to s...
Short Version (During the next 500 years on Earth) How does life change for students during school and after they graduate, to find work in a world where our economy is still based on gaining weal...
So in many a fantasy world mountains, or in some cases a particular mountain that play an important role in the story. Maybe it's the seat of the gods or hosts a hidden Shangri La, you get the i...
So, my climates are extreme due to a 31.1 degree axial tilt. The maps provided show a climate classification system based on prevailing winds and elevation. Based on Reddit user u/shagomir's Plane...
To clarify on the title, K-type main-sequence stars--shortened as "orange dwarves"--are subjects of excitement for astronomers and astrobiologists. Why? They emit enough radiation to provide a...
Some time ago I asked: "How long would it take until we realise that people stopped dying from natural causes?" I today realized that similar but much more interesting (and more realistic...) ques...
An alien entity fell in love with Earth a long time ago. When he came back to her, she looked different. He would like to return Earth to her Hadean eon when she was much hotter. This entity has ...
I'm trying to calculate the solar declination at the solstices, solar altitude at solar noon, and hour angles at sunrise and sunset to build a standing stone calendar at latitude 53.8 degrees South...
My question involves the earth being blown up using theoretical dark energy. In this scenario, the crust and mantle are destroyed by precisely placed weapons so that all that remains is the core. W...
And I mean only making the moon orbit the Earth faster: no change in distance from Earth required. Is such a thing possible?
I've tried researching this question myself, but the only data I can find is over huge timescales, like situations where the continents have reformed back into a Neo-Pangea. I'm not looking for an...
(I bolded the actual question, below, so if you want to skip the preamble scroll down to the bold lettering) I am working on a world that is very similar to earth in some ways, exactly the same m...
Imagine an alien species arrived on Earth, to find that the nitrogen in the air was toxic to them. Imagine they wanted to terraform our planet, and decided to fix this problem by nitrifying a lot o...
I am considering writing a fantasy novel. This novel would be set on an earth-like planet, but certain story details require that the planet have either a much larger or much closer moon than Earth...
First, specifying format in this question I will be giving temperature ranges that sometimes appear backwards. This is because I am listing average temperature ranges from southern to northern lat...
Is there anything that could change the colors of the clouds while still maintaining the sky blue? Or any other color for the clouds, except blue. You can use our solar system as a basis for this. ...
BACKGROUND The world I'm designing currently has a gas giant of the type known as a hot Jupiter orbiting close to the sun and causing solar flares. I would like the inhabitants of my Earth-like wo...
1 degree of latitude = 96.57 km. Equirectangular projections. (Yes, I need to revise the polar regions to make sure they don't get squished.) Obliquity of Jasmi: +31.1 degrees. Radius of Jasm...
I'll try to keep this question as concise as I can, but I'm not great with technical jargon, so a simplified answer would be greatly appreciated. Here's the set up: I have binary star system with...
I was wondering what would happen if you dug to the center of the earth. Would you get stuck in an infinite gravitational pull loop, or would you just simply get torn in between the two pulls? Yes,...
How would the human eye have developed differently on a planet with two suns? One sun will be a yellow star functionally the same as Sol and the other will be a red dwarf. The planet will be ea...
Disclaimer: By human-like, I am referring mostly to limb proportions similar to ours. Would it be reasonable for the average member of a bipedal species with proportions similar to those of human...
How much TNT do you need to blow up Mount Everest? Is this even possible and can mankind survive a huge explosion like this? Or would the whole world be covered with dust? And if you can survive ...
Boats and balloons both work because of buoyancy - they are pushed up by a force equal to the weight of displaced water/air respectively. I want my (otherwise earthlike) planet to have 'seas' of a ...
Are there any such world elements that would seemingly randomly cause creatures to faint for extended periods of time, ranging from a few minutes up, but revert before they started suffering perman...
I've been playing with ways to make my world interesting, and also further justify the limited use of ferrous metals. One idea I had was that my world might undergo regular and intense geomagnetic ...
If some kind of insane wizard began a ritual that would turn the inner core of the earth into gold, what would happen? Over the course of 15 days, the entirety of the core will become gold. Each ...
Considering a civilization that was here far before everything we know of, lets say around time of Gilgamesh. Warm climate, almost no winters, near the ocean with enough rivers, and people being ab...
In my world, similar to our earth, a person has the ability to create gravitational "spheres". He can: modify its location vary the force move the sphere (once created) select what or ...
So, I the question of what if a black hole hits the earth has been asked to death by various people, but what if the somewhat tamer wormhole hits the Earth? In particular, we'll say that one mouth...
Let's suppose that there is a canyon, several hundred kilometers in length, stretching from Leipzig to Geneva and reaching the depth of 30 kilometers. It is up to 60 kilometers wide, cutting throug...
