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I showed a draft of a short story I wrote to some friends and got a very derisive comment from the chemist in the group. According to him the chemistry just isn't possible. I'd like a second opi...
I'm currently heavily revising a story which is largely set on a habitable but not exactly hospitable moon of a gas giant orbiting on the outer edge (or just beyond) of the habitable zone around a ...
Considering a distant future where mankind has spread and inhabits lots of star systems. Would there be a justification for inter-system trade or exchanges ? FTL travel may be considered, but with ...
I'm making a fairly hard Sci-Fi story, and I was wondering what the most scientifically plausible 'energy shield' (for ships and stations) would be. My world tries to remain true to basic physics, ...
Is it possible for complex life to exist on a planet with no tilt and no moons, and be so close to its sun that the equator would be far too hot to cross on foot and still survive, and its poles fa...
Reality check: Protagonists of my story have a scientific device of a peaceful purpose. Unfortunately, despite the peaceful purpose, activation of the device, as a side-effect releases about 100 ...
I need to create a race that should be utterly older than humanity (and as such, much more powerful). My idea is to have that race originate from a rock planemo - a rogue planet, orbiting the cente...
Is there a way to split a tectonic plate into two plates? or a way to alter their motion? -What would the impact of a such a change up here on the surface? I know that plate tectonics is run by gi...
An ancient civilization mapped wormholes when the universe was quite young and smaller. This allowed them to reach other galaxies (wormholes from our galaxy to others). They mapped it all. Humans ...
Could a Snowball Earth drive our species into total extinction? The most obvious problem is: How would we grow food to sustain any grouping of people?
Sorry for any errors; I'm Italian. I'm working on a story where the Earth is devastated by a great geological cataclysm (strong earthquakes worldwide, volcanism bursting everywhere, large tsunami ...
I am doing some research for a science fiction novel. I need to have a planetary body around 10,000 km in diameter appear in the Solar System near the Earth and proceed to orbit it artificially. I ...
On a certain planet, there is a large population of falcon-like birds. They dominate the avian ecosystem. However, a population of nearly-identical birds soon finds its way in. The only difference ...
Well, today I have a fairly simple question. Is it possible for a human to have some sort of birth defect, mutation, disease or something that causes the human body to be unable to produce body hea...
I have a scenario where a person has nanorobots unknowingly injected into his bloodstream. I'd like his doctor to discover them through some kind of medical test, preferably a blood test. Of cour...
I've devised a world where artificial intelligence (AI) have taken over as middle-class (America), leading to the further division of human classes: a superior upper-class and a now much lower-clas...
I was working on a relatively near future time-line (20-30 years), and there is a scene in which the POV character has to sabotage the local power supply. Now my initial guess was that it'd be a ...
Let's say, we've surpassed all tolerances of population. But, mega-corporations found a creative way to solve the problem. They dug into the Earth to build bubble cities in magma. They have access ...
Following this question, I had additional question of habitability. Assuming that life could exist on planet formed roughly twelve billion years ago, allowing complex life to exist as of seven bill...
I'm getting bored waiting for monkeys or dolphins or crows or whatever to just evolve human-level intelligence. Is there anything practical we can do to create more favorable "natural selection" co...
Take a modern nuclear reactor complex. Now picture a catastrophic meltdown, not unlike Chernobyl. But this time there is nobody around to do damage control, and all control mechanisms do fail. Th...
Most natural satellites in our Solar System are expected to contain fission furnaces at their cores, and some of these moons do have a striking resemblance to an asteroid. I'm wondering if we could...
With news about the Faroe island solar eclipse, I wondered if a constant solar eclipse would be possible. Is it theoretically possible to move the moon or some large object into the L1 earth-sun L...
Is there a plausible makeup for a lifeform which is highly resistant to even very advanced firearms (or any ranged weaponry for that matter), but can be injured more readily (albeit still a major f...
I'm writing a very nontechnical science fantasy with a star-ship (literally a giant spacecraft toting around a star) in stable orbit around a black hole. It uses one of the "stellar engines" mentio...
