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My main protagonist is going to fast-forward himself in time by 1000 years. He will simply reappear in the same place (marked by a small beacon), the process being instant for him (no hibernation e...
Gliding is a relatively simple trait to explain in a species' evolution, much quicker than flight or becoming aquatic. But what environments support an animal in the evolution to flight? For exam...
Imagine a gas giant orbiting Sirius B, a hot Jupiter. 120 million years ago give or take, the star reaches its final stage as a red giant then collapses into a white dwarf, ejecting countless billi...
Currently coming up with a race that lives on floating islands. They are a still primarily stuck to the ground and I intend for them to be able to fly. Or else they are really gonna be stuck on tho...
In context, I need to transport a package that has gotten very close to the sun, and I've chosen to use a wormhole. What I need to know is if there is a certain distance that needs to be considere...
I already read Can a planet survive a supernova? but that just addresses some kind of planet-remnant remaining in orbit. Parameters: Binary system. One component is a Sun-like G-type star with ...
Many pets are very disturbed by the presence of mirrors or other reflecting surfaces where they see their own image. If there were many reflecting surfaces in nature I would think that it would rep...
I'm building a story about a world where it has been discovered how to travel to any possible universe according to the many-worlds interpretation, and there's a company which is in charge of sendi...
Jupiter is a terrible place to be, but for a number of artistic reasons, I'd like to have my story take place there and only there. "Mining", or resource extraction by any other name, is the usual ...
Sea levels are rising due to global warming. The Moon brings tides that also rise the sea level. If we destroyed the moon could this problem be solved? Would it have other consequences?
And I mean faaaaar future. Like, twenty thousand years minimum. 13 million years at maximum. Let's say the Earth is doomed and to avoid the impending extinction of the human race, we throw most o...
I'm working on a sci-fi/fantasy world set in a solar system with a few habital, currently-being-colonized planets. Most of the action will be taking place on the surface of one of them, but I want ...
Recently, a planet around Proxima Centauri has been found. It is in the habitable zone, in the sense that if the planet was a black body, it would have a surface temperature of −39° Celsius. The p...
Suppose a mad engineer needs the world destroyed by next Tuesday. For efficiency's sake, he considers "Gray Goo," a hypothetical end-of-the-world scenario in which self-replicating machines devour ...
Certain aphids and mites reproduce by telescoping generations, but do so in different ways (parthenogenesis and intercourse in utero, respectively), Hypothetically these methods could be combined....
Is it feasible that such a race can exist within the following constraints? Body: Humanoid design Average heights at maturity between 2 metres (females) and 2,5 metres (males) Live ...
I'm building up a world with floating islands. They don't move much and generally stay around the same area. However, would this affect the weather? Essentially, I have giant floating rocks in the...
Has anybody made any serious calculations of what the climates on Earth would be if our planet had a larger axial tilt? The most interesting are the cases of 45 and 90 degrees.
Short version: 1 million people were left to fend for themselves (a.k.a. there's no room at the inn scenario) through what amounts to a storm of asteroid fragments pulverizing the United States (l...
In the last few decades there has been a lot of progress in the development of prosthetic limbs. They can be operated by the user's nerve pulses, they can be fitted with simple touch sensors, and c...
Let's imagine that people, if they'd want could freely leave Earth to pursue their own destiny on other planets etc. How far could we get assuming following: Assumption No. 1: It's trivial to get ...
The Collared Peccary is not the name of the greatest man stripper under the sun, but is a species of mammal in the family Tayassuidae found in North, Central, and South America. They are commonly r...
North America's largest and perhaps most popular volcano is the plume of mantle situated right beneath the surface of what we arbitrarily call Yellowstone National Park. This image shows the two...
Flash news: Dr. Handwave have discovered a way to store energy, without loss, and for unlimited time. The battery has the following characteristics: Electric: Can be charged by any electric sou...
In my world there exists a planet called Solara Prime. The planet orbits a large yellow star, healthy and capable of sustaining the system. There is one planet and 4 moons whose orbits are roughl...
