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Assuming the planet is earth-like, with more surface water and atmospheric oxygen, and within the habitable zone of a sun-like star, how can a moon orbiting this planet retain a thick atmosphere? ...
The established fact is that the shape of a planet's continental coastlines is determined by the planet's climate. Higher temperatures mean less ice, which ultimately means higher sea levels. (Ca...
Bonus: How much would the increase in lunar mass increase average tides? & which factors would cause the Earth to become uninhabitable?
Medieval bestiaries describe a creature, a type of desert-dwelling ant that digs for gold. It was also said to be the size of a fox, but I'll ignore that in this question. Why would ants unearth p...
A mage has created an amulet of light. It shines light from one side, and the user is capable of controlling the color and intensity of that light. In an effort to avoid abuse, the mage has limit...
I know that chemical rockets would allow for some minor loads to escape the gravity of a planet with higher gravity. My question is, what kind of technology would possibly allow a dominant specie...
These dragons spend most of their lives in the ocean, however during the mating season they will migrate inland and gather together on a mountain top. Throughout the journey they will cease feeding...
I need an explanation for how one could be immortal and still age. If one was truly immortal one would remain an infant forever. How could this be explained? I'm working on a character who is supp...
Okay, we know the type-IIb FG muscle fibers are the strongest stuff we can use. So, the only thing we can do is attach more, but how? Dragons are 180 cm tall at the shoulders with a total neck+hea...
Is it conceivable to genetically engineer a moray eel large enough to hunt and eat humans in its cave like habitat? It needs to have: armored skin that can withstand gunfire good all around swim...
@Gryphon has made me aware of this The Least Interesting Substance It is very close but I need a planet that can form naturally. Would any of the substances mentioned in answers to that question b...
I'm working on a story in which there is some sort of planetary erosion of language. Humans lose the ability to communicate verbally (orally and written). They can remember having language, can eve...
TLDR; what would weather be like with minimal axial tilt? Included is a picture of my climate map and several perspectives of a paper model I made of the planet. The ocean covers over half the pla...
I made a map for my fictional world and it would be convenient for the story to have all of it affected by a somewhat similar climate. The map is made of several pieces of a Pangaea-like continent...
I have some research I want to do about a planet for a novel I'm writing. It is a fiction/science fiction novel, but I do wish to actually have some parts of the world correct in the scenes I depic...
Set in near future. Human population is at most a hundred thousand. Everyone lives in mountainous regions to escape deadly miasma. The air is infected by nanites which can cause cardiac arrest in ...
66 million years ago, the dinosaur empire was in its death throes when its final nail in the coffin came hurtling down from the sky. A clump of rock the size of Mount Everest smashed into the Gulf...
I know that currently, black hole civilizations are only theoretical. But here are my thoughts on why black hole civilizations are impossible. Black Hole Civilization Issues 1. Gravity This is...
The running theory is that if the Earth is hit by a sufficiently large meteor, that the impact would create an ice age from all the dust it would put into the atmosphere. While this has been histo...
In this world I'm dabbling with, the dominant species is a race of six limbed humanoid with two wings on its back slightly below the shoulder blades. They are very slender ("BMI" is between 17 &...
So I'm currently designing an alien habitable planet that orbits a star similar to our Sun. Assuming that the composition of the planet's atmosphere, as well as its pressure, are similar to the one...
So I'm incubating a few alternate histories in my head. Many of them will butterfly away the Wright Brothers and many other familiar parts of history, and at least one has aircraft development as a...
Exposition One of the biggest Problems my Renaissance city with 2.7 million inhabitants is facing is how two get food from outside the city fast enough to the populous before being spoiled. The ...
In my world, high velocity projectile weapons have become obsolete due to a shield/forcefield that can nullify and deflect projectiles traveling at, or above supersonic speed (EDIT: Firearms are de...
An asteroid collision big enough and fast enough to see a massive ejection of rock and moon-chunks, from the surface of the earth AND not wipe out the population of the planet. What size and speed...
