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Is it easier to build colonies within the solar system than to send colonies to other stars? Logically, wouldn't we have cities on Pluto sooner than we will have travelled to an exoplanet?
I know that this would, perhaps, be biologically impossible, but suppose it's possible, how would such person see? I know that cats have a vertical adjustable pupil and goats have a horizontal one...
In my setting the known worlds have recently begun coming out of a medieval stasis after about two thousand years; the lucky worlds at least. Prior to the event that destroyed their technology and ...
So, like my question says, I've been wondering if a rocky planet, that looks much like our planet from the surface (oceans, forests, mountains, ext) could be possible. I've read through a good nu...
I'm well aware that a Sun-like star is incapable of producing a supernova at the end of its life. However, would removing the core or a fraction of it, trigger an explosion from the star collapsing...
Slenderman is unarguably the most iconic creation of the early internet. It has led to games, stories and even books. But is his design evolutionarily possible? What evolutionary pressures would le...
Consider a race of humanoid, winged tree-dwellers. They can fly and generally spend most of their time either in the air or climbing around their tree-homes in the upper reaches of a forest. In ord...
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...
Gravity is the weakest of the fundamental forces of universe but along with electromagnetism tends to dominate most of the macro world phenomenon. But what would happen if the force of gravitatio...
The primary armament of the space warships of a race I am building use an armament that consists of explosive shells that have a rocket engine in them. The idea is that they are fired from the shi...
Say a star system in the local neighborhood (~15 light years away max) has a species that did not survive its own version of the cold war. The result is the usage of tens of thousands of nuclear we...
So I'm writing a story that takes place in Saturn's atmosphere, and I've run into a bit of a problem. You see, I wanted it to be possible to have some pretty badass scenes with sci-fi fighter jets ...
There has evolved a species of turtles large enough to maintain an atmosphere of their own and travel interstellar space. We have already discovered how they don't collapse under their own gravity,...
Here's an idea that I've been toying with. The aliens are real, they are here and they dominate at least a part of our galaxy. How did they overcome the vast distances and why haven't we noticed?...
I am currently orbiting Jupiter, the rent is pretty cheap and the view is magnificent. However, my former electricity provider refuses to connect me to earth's grid for petty reasons like "are you...
So, if Humanity wants to conquer the galaxy one star at a time, it is going to need a massive fleet. This fleet will require massive resources to build. If I want to build a fleet to take over the ...
Western civilisation fell over a few centuries ago, because the Earth shifted back into a full on ice age climate. Oh and Skynet kind of happened. Ice sheets expanded, inexorably rolling over the...
I'm writing a sci-fi screenplay and I wonder how a human face of an adolescent would look if it was somehow covered with a sort of flexible mask since birth? What would you discover if you removed ...
The "Light-Year City" Questions "” What would be the gravitational implications of a city in the far, far distant future, with an area spanning one square light year (3.456 × 10^25 mi² area)? Th...
Mythbusters did an episode about trying to foil a blood hound, when Adam played a convict who tried to make the dog lose his trail. Every trick he did failed like washing, changing clothes, going ...
In a magical world there is a tribe of people divided into termite-like castes. They live in the wilderness, far from most regular humans. They are effectively human; fully conscious and conscien...
Guran's comment Perhaps they are tinkering with the solar activity, turning stars into Yotta-watt, nano-bit/second beakons. (We would see the pattern eventually, but not before we looked at cen...
The Megaphragma mymaripenne is the smallest animal with eyes, brain, wings, muscles, guts and genitals. If by some miracle it could be still shrinked, how much smaller could it get before it st...
I have a mars-sized "planet" orbiting a superearth-sized mother-planet. There is also another satellite with an abnormal elliptic orbit, but it is of minor concern for now. This is the resume of ...
Consider a world in which instead of light coming from a single region of the sky, the sky appears close to uniformly luminescent. The intensity of this light depends on latitude such that amount ...
