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I wish to clarify my doubts regarding time dilation Is it possible for a planet to be habitable like Edmund's planet from interstellar, which has somewhat similar gravitational force as Earth (9....
If humans colonize Mars how will the 2 societies (Mars inhabitants and Earth inhabitants) be able to synchronize and cooperate regarding time? Since: Martian days and years are different than the...
The dominant society on my conworld is at a level of technological and scientific development not unlike our own, with minor differences here and there. Scientific standards are decided by Academy...
Consider a rogue planet, moving in a region of complete void absent any type of star (they all burned out). It is orbited by an artificial moon which shines and serves as the planet's sun. However,...
So, this question has been asked before, but I would like to make a few stipulations regarding the specifics of my question. Firstly, the aluminium in question is fabricated in modern times, and...
Life on Earth pretty early on settled on deoxyribonucleic acid organized in chains of base pairs as the means to code for the construction of proteins which make up a lifeform. It also has the bene...
This question would be best answered for the time period of our first colonized planet, which will most likely be Mars. With the thinner atmosphere, weaker gravity, low oxygen, and the bodily damag...
Anatomically speaking, could an aquatic mammal develop a horizontal fin that instead of being localized at the end of the tail extends up the sides in a similar manner to how an eel's fin extends u...
Let's say an intelligent civilization of beings capable of building planetary superstructures created an artificial planet with a solid core capable of generating a gravity well and covered the sur...
According to Wikipedia, ...plants are green because chlorophyll reflects green light. And chlorophyll is found in all plants because it is the molecule that absorbs the light that is used to ma...
My friend is writing a book, and I volunteered to create a planet for him, one with an epic mountain extending far above the clouds. The planet features lush jungles in the lower elevations and e...
Rain happens when the pressure of moist air drops enough to form droplets and the droplets get heavy enough to fall. The trouble that I see is that the pressure will probably drop off slower than ...
What would be the design of a near-future extreme-cold environment suit? Consider a protective suit that is not a space suit because it doesn't need to augment the pressure felt by the body. It d...
And if I wanted them to appear about 10 times the size of the sun and moon, would this be possible? Should they lie inside LEO or beyond it? I would like their orbit to be considerably closer than...
I'm working on a setting with merfolk that I'd prefer to be fully mammalian. However, they have underwater cities and I find that hard to believe for a species that needs to surface every few hour...
I understand there are a lot of factors to consider here, but would it be possible for material from the ship's destruction to fall to earth and cause significant damage to a city? What is a reason...
Quick sketch of how I conceptualize this creature's skeleton. Sorry for the chopped off head, the jaw design and such isn't finished. The 4 yellow bones on the tip of the neck are the base of the...
I am designing a species specifically designed to be technician on spacecrafts, where their workspaces have low-gravity. Here is how they are currently designed: They have two pairs of arms inste...
Suppose you have a planet covered in a deep layer of supercritical CO2, and animals evolved to live in it. Discounting the ones who crawl along the bottom, would their method of locomotion be more...
I recently watched a special on cave divers in the Yucatan Peninsula and part way through that show the divers encountered a feature called a Halocline, a meeting of two different water masses of d...
Based on the desert world from this question I need to transport around 500 cubic kilometres of water / year across a desert. Using this calculator. this can be achieved if the main feeder canal is...
I'm writing a science fiction story set on a moon orbiting a gas giant. I want to understand how the world's day night cycle would appear from its surface and how the world might be affected by thi...
Replicators have become a staple of science fiction. However, many stories treat them as magical, or with inconsistent abilities. This is not a magical device that makes anything for nothing. Whe...
I am trying to figure out the sex-determination of a very foreign form of reproduction. A species has three sexes X, Y, and Z. X produces X gametes, Y produces Y gametes, Z produces Z gametes. The...
I've been building a world that has a thicker atmosphere than that of Earth, about half the gravity, and twice the amount of oxygen. My reasoning behind these features is mainly to support the grow...
