Posts tagged earth
On an Earthlike planet with one large moon (just like Earth's), I have a large landlocked sea with one narrow exit (like the Black Sea, but much larger, something like six or eight Mediterraneans, ...
Say the moon is drifting further away from Earth at an astonishing rate of 3.14159km each year due to the crazy tides, the rising sea level and shielding us from stray asteroids. Given 150 years ti...
I'm writing a Earth history time travel story, and the main character needs to solve puzzles from each time period he visits. I'm going very far back in history and I'm concerned about being able t...
In the 22nd century C.E. human already colonised the entire Solar system, and Earth becomes a dangerous place to live because of the spread of deadly synthetic virus that kills every animals and sc...
Technology: Comparable to early XXIst century, except self-driving vehicles are already available. On a tidally locked planet most of the models that I can found (ex. http://www.meteo.mcgill.ca/~t...
I have planet with twice the radius of Earth, with its core being the same absolute size as Earth's in order to provide magnetosphere, and the rest of the planet made of silicates like Earth's mant...
I have a world idea (and definitely not the only one with such an idea in which the main location is a moon of a gas giant, that has life like on Earth. What are the effects of the presence of the...
Would it be possible to recreate planet Earth and it's ecosystem on a desolate planet that has with similar basic properties? This planet has a similar temperature range to Earth, has no soil, onl...
My setting is a habitable moon with freestanding water orbiting a gas giant. Originally I thought the gravity of the jovian world would tend to draw water toward the tidal bulge of the moon itsel...
I have an earth like planet where stalkers live. They are: Humanoid about same height, strength & speed as humans Three pairs of eyes placed horizontally (Near UV, Visible, Near IR) Lightspee...
Some information about their homeworld: Their homeworld, 0.34247 (M⊕) 0.54 G, 10156 km. The atmospheric pressure of their homeworld is 62% of the Earth's, and the planet has an average temper...
Consider a billionaire living on earth today. What would be the most effective way to deploy sensors to a vast area of the earth's sea depths? (Sea depths referring to the sea floor, and slightly a...
The Idea is to move large amounts of water vapor high into the Troposphere, thereby blocking some of the sun's intensity. Factors that contribute the Earth's solar heat gain include reflectivity/e...
How fast does the Earth's core rotate currently, and what would happen if its speed of rotation were to increase dramatically?
A mad scientist decides to hold the moon hostage for one million dollars. He accomplishes this using a tractor beam of arbitrary power to trap the moon directly between the Earth and the Sun. The t...
Earth like planet has 3 atm pressure at it sea level. How would it affect its rainfall system? 1) Using internet calculator I got a result that boiling point for water would be 131°C, while freez...
How would just the weather be affected if there was huge mountain range between the Arctic and the mid latitudes of a planet? Roughly 50-60 degrees latitude. A little further south than Earth's Arc...
What colour will planetary rings made up of dust and rock (not ice) appear to be? Would there be a difference looking from space and from the surface? More importantly, how will the rings affect t...
In theory I believe that if you moved far enough above the surface of the pole you should be able to reach an area where you have constant sunlight, even in the middle of winter. My question is - ...
After a nuclear apocalypse, will the earth have enough time left to go back to its pre-human state? If it did, and a new civilization appeared, would it be impossible for them to know that the ini...
Earth is entering anther ice age and this time there will be no liquid water on the surface of the planet, the water cycle disappear as a result no Coriolis effect. What would the weather be like t...
I am wondering what the world would be like because in this story I am making, it is in the future where the ozone layer is gone and big cities have big structures that generate an artificial barri...
What would happen to an Earth-like planet if its core completely and instantly vanished? Would the planet begin to pull in on itself due to asymmetry and the empty space in the middle, or would it ...
In this context, my world assumes an infinite universe so parallel Earths are possible and probability isn't an issue. My planet has half the gravity of Earth but an atmosphere 12x denser, although...
Positing a high (c. 35%) Oâ‚‚-level on a roughly Earth-equivalent planet (atmosphere about like the early Carboniferous), what types of lifeforms would flourish? Obviously, giant insects could be ...
(First time posting on worldbuilding, be gentle!) For reasons currently unimportant, Earth has been encased in a solid shell which is for all intents and purposes completely invulnerable. The shel...
Imagine you're on vacation in Greece. It's a nice sunny day, so you decide to go for a swim. The bottom of the sea is full of some greenish-brown ugly seaweed, every stone is covered by some fuzz a...
I wonder if it would be scientifically possible, and what would be the explanation for an Earth-like planet with average surface temperature of 14°C, but a very hot ocean, like 80-90° C, covering...
What type of extraterrestrial body could successfully pierce through one side of an Earth-like planet, go through all strata, through the core, and then continuing through the strata and through th...
As the question asks, what would happen to the Earth if its core collapsed? Now I don't know if this is something that is possible or even realistic, but I found the question interesting nonetheles...
What if there was an alternate earth where there was no landmass between North America and South America. For clarification, in place of Central America there would be a sunken land bridge at the d...
In an Earth-like world I have long pondered building up, the pre-industrial (roughly colonial) society primarily exists on a single continent, roughly the size of Africa. Another continent has been...
Assuming we had a gas giant instead of Mars in our planetary system. Everything else stays the same. Which long-term and short-term consequences for life on Earth would I have to take into account?
Let's assume this planet has had a normal lifecycle up to this point, becoming an Earth-like world with around the same climates, size, landmass, day/night cycle, and has a single moon of similar s...
First the situation, then the question. Here's the situation: An Earth-like planet had a civilization similar to ours, but when it emitted its first radio signals, a nearby alien observation post ...
What would be the characteristics required to make one region as hot as possible? How hot can it get; Can it be hotter than Dallol? Setting: an earth-like planet with all the same characteristic...
If all the world's know nuclear cache were to be placed in a single location and detonated, how would it effect the opposite side of the world?
So tomorrow for some unknown reason Earth starts spinning significantly faster. How fast could it spin before life on earth dies. What would be the extinction factor? Super storms, the planet di...
The setting is basically earth. Our planet is unfortunately on a collision course with a large asteroid. However, humans have discovered and decoded a message from an ancient, advanced alien race (...
First, a little background information. For the purpose of my story, I'm making the Earth uninhabitable, similar to this question. This is to cause a mass exodus from the solar system through a bit...
I hope this isn't too broad. I would like an Earth-like planet for November's NaNoWriMo that is just enormous, but plausible. Then I started to get into material composition, proximity to the sta...
In my world, a 16 year old boy has gained ghost-like properties, invisible to the naked eye and able to flit through objects as if they were not there. Like a man trapped in a room with an endless ...
Humanoid and Planet I understand that you might think "2 circulatory systems require more oxygen so obviously it is not useful." but I know my Kepler Bb humanoids inside and out from anatomy and p...
I need some help with a couple of the planet building theories I'm playing around with. I've looked up most of this stuff and can follow the physics if given the time (and instructional tutuorial h...
Life on Earth has developed with one Earth-gravity, more or less, as a constant for epochs. Our bones and organs both are adapted to this amount of pull, (or push, depending on how sciency you wan...
The planet in question is Earth-like in size and composition and orbits a Sun-like star. Its atmosphere is less than 5% Oxygen and plants (lichens, some grass and river vegetation) have started col...
For most of us, meteors are by far the ultimate planet killers. All it takes is one direct hit to suddenly wipe all life from the face of a world. But, rather than taking life away from a planet, w...
Assume that this earth is celestially equivalent to ours: e.g. same solar system, same position, same orbit, etc. Would the sunset look similar to ours on a floating-island earth? The earth itsel...
If Earth would have been sucked into black hole. Would it be crushed by gravity pressure or not?
In my world, a web of space stations was built around the planet to save humanity from ~as of yet unspecified horrible disaster~. Now, it's been a thousand years, and the space stations have begun ...
