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Imagine that God has many universes to deal with or just needs a break sometimes. He has a pause control. What plausible mechanism does God use to perform the pause without breaking the laws of ph...
It's the far future. Humans are still! increasing in population. We have developed habitable orbital structures and terraformed any planet we possibly could. We reached the maximum potential for h...
Mars is a cold, inhospitable, slightly damp ball of rock that would be very difficult to do things like grow crops on. However, it's also very far away. Far enough that, presumably, it would probab...
I have a story where a powerful outside force killed (next to) all humans on earth some decades ago. The way I want to build it is that it required that the human outposts on the moon to die as we...
Okay, so some space miners fly into space to get Helium-3, and then fly it back to earth to sell to non-space people. Flying into and off the earth is rather expensive, so they want to simply take ...
I want to get a shuttle from place to place in a reasonable amount of time. Say, 6 to 8 hours maximum, with a short break at the midpoint to turn around. Assuming constant acceleration to midpoin...
My question is simple: How many nested moons are physically possible? If our moon had a moon, that would be a nesting of 1. I'm assuming it's easily possible for a really big moon to be orbiting ...
So, imagine a team of space marines, fighting some sort of space bug zombies on a planet's moon. Things are going pretty bad for them, and the last surviving protagonists are running for their live...
Considering our topic challenge, and the fantastic eclipse last Sunday a question came to me. Could there be a stable (relatively speaking) planetary system where a(n) eclipse/alignment would actu...
In Ribbontails Series Aman5 there are creatures called Kuutamian animals. These animals are sapient and can have any form. The creator uses the excuse that they have three DNA strands, but how real...
The Biblical story of the Flood describes how over a period of 40 days the earth is flooded so that the peak of the highest mountain is 15 cubits/22.5ft/6.858m below the new mean sea level. The fl...
An alien race decides to test the hability of humans to survive and engage into space travel, for whatever reason. The planets The aliens prepares a pair of Earth-like planets revolving around a ...
As a source of food, would it be possible to have fish and/or plants living inside a water tank situated between the fusion or fission power plant and the crew quarters of a ship? The ship in ques...
As per the title, given A billion ($10^9$) dollars. Present day technology. A year of time (including making projects and testing), (preferred, not compulsory) No restriction about maximal nor mi...
Setting The US is waging a failing War on Drugs where cartels are quickly gaining power. Scenario In the near future, say 2030, with current technology, the Texas state government is implementin...
Arising from the comments in This Question, which started to stray offtopic into the question of whether men are needed at all. In Short: Could you create a fertilized human (necessarily female) f...
This is inspired by What single element could destroy the world?. Injecting sulfur dioxide into the atmosphere has been proposed as a mechanism to relieve the symptoms of global warming by creatin...
In How large a bioengineered mobile lifeform could exist on Earth?, I asked how big my nanoassembled war beasts could be, and it was suggested that I make my question more specific. I am designing...
When looking to design armor - how can I determine whether a given ballistic object would completely stop, deflect into another direction, or penetrate another object given complete physical inform...
For my story, I need to know the following: I have a (long exposure) analog (as in "not digital") picture of the night sky taken on a random planet somewhere in the Milky Way galaxy. I know it i...
Given that a laser beam is made up of coherent light waves running in parallel in the same direction, and that space is not a complete vacuum (dust, radiation, electromagnetic forces etc.), what ki...
I want to play with the idea of a sapient species evolving on a world where at least part of the world experiences a permanent day. The obvious way to doing this would be where part of the world f...
The Halo video game's extended universe book Halo: Evolutions describes the Battle of Psi Serpentis, in which a superjovian planet is converted into a brown dwarf via massive nuclear bombardment of...
So I'm writing a setting featuring asteroid mining à la Deep Space Industries, where the material mined is used for construction in space rather than brought to Earth. To maximize efficiency, I'm ...
In many movies we see super heroes creating walls of ice to block explosions and bullets. How realistic is this? In the Incredibles Frozone shoots ice at a police officer just before he shoots a ...
