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Coronal Mass Ejection and solar flare produced on the surface of the Sun often can cause disruption to our electronic equipments especially the communication service if it was directed towards Eart...
It's always ~7:30 PM. Gravity and air are normal, and clouds and winds and storms exist, but there's no moon, and the sun is always just touching the horizon, without ever moving in the sky. The w...
During the early medieval age, the population of trolls is declining. These are savage creatures who aren't as cunning as humans, and not only are we part of their diet, humans are in fact their on...
A global epidemic of H1Z2 virus has rendered 95% of the population into zombies. The zombies have lost most of their frontal and temporal lobes so the following capabilities are either severely de...
From Earth, we can detect extrasolar planets by a number of methods; primary are detecting the wobble in a star's motion caused by a large orbiting planet, and the dimming of the star's light as th...
I was planning a short story that focuses on a rainy day in a city, and I realized that there's one interesting feature of it: Even though the weather seems bleak, and it affects the actions of tho...
Has a loose base in this earlier question of mine, although today we will be working with modern (roughly) tech levels and bacteria. It was pointed out in the accepted answer that bacteria might be...
Our perception of time is steeped in the rhythms of our world, and blended with the most ancient of superstitions, decrees and mathematical conveniences. Thus we have days that track our world's ro...
One of the cities in my world is built on the ground floor beneath and around giant tree. Giant tree cities seem to pop up fairly frequently in science fiction and fantasy, but how would they actua...
I'm currently creating a world with a population of about 4.5 billion people and 21st century technology. In fact, the world is strikingly similar to ours. Oh, except the islands that is. The en...
In my world there is a trading city in the middle of a vast stretch of wild, untamed forest. It was built to serve as an in-between for merchants as there is a peaceful kingdom both north and south...
Suppose that there are 2 interstellar empires at war with one another, both armed with FTL drives which cannot be used within a certain radius of huge gravity fields, stars, gas giants, etc. Anothe...
How much would the gravitational force (on earth) have to increase to make air-travel impractical (not impossible as escape by space flight to other planets would be a nice option). But to a point ...
Scenario This is set in the future; humans already achieved Type II civilization status. Humans conquered the entire Solar System and managed to colonize Jupiter and all its moons. The next big ch...
When I was a kid, I read an essay by Asimov describing an inside-out asteroid: (summary from Wikipedia) The Bubbleworld or Inside/Outside concept was originated by Dandridge M. Cole in 1964....
Imagine a space cataclysm, where the Earth is hit by a deadly wave sterilizing all life of the bright side, but the dark side is more or less intact (at least the atmosphere and life are still in p...
The picture above is a representation of a Methane Earth. I pulled it from this Wikipedia article on alternative solvents. Several questions deal with whether life would be possible on a world w...
It must be very dark and hot on the surface of Venus, but my humans want to change that and make a Venusian colony. The problem? The extremely thick atmosphere would make it problematic to say the ...
I am writing a novel, in which the main character has their mind transferred to a wolf body, losing all thier memories in the proccess. My current explanation is that the state of every neuron in ...
The Scenario: The Sun is eternal. We are producing much more oxygen than we need. First off, would the atmosphere grow, or would it just become much more dense? Given the circumstances, if th...
I have an Earth-sized planet in a Milky Way-like galaxy with all the land located at the equator, in a 2000-km line around the planet. There are small islands near the landmass, but no land anywher...
In a futuristic sci-fi world (galaxy?) I'm building, warfare has become highly regulated and commercialized. When two corporations meet on a deserted planet to do battle, they're followed by all so...
Without giving spoilers, this idea comes from the movie Titan A.E. How would one create an Earth-like planet in a reasonable time frame (100-250 years) that has both the gravity of Earth and a magn...
I'm working on a comic which is essentially alternate-history fiction, and a big upcoming part of it involves the formation of the Chicxulub crater 63 million years ago. As I am a stickler for acc...
Imagine a world in which the structures and resources are our own organs, tissues and cells. The society would be run by special cells and living microorganisms. My inspiration is from the animati...
