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For certain reasons I decided to not set my story on Earth. However, the planet is meant to host an Earth-like biosphere (including humans, most of Earth's species (perhaps some that didn't evolve ...
In the DC comic book universe, the Vega System is a solar system around the star Vega (Alpha Lyrae), which is depicted as having dozens of habitable planets. While it seems to be an implausibly lar...
Consider current level technology - surveillance satellites, patrol boats, coastal guards, both USA and Russian anti-submarine jet aircraft patrolling skies of Arctic Sea. I have a big group (~100...
The one-electron universe postulate, proposed by John Wheeler in a telephone call to Richard Feynman in the spring of 1940, hypothesises that all electrons and positrons are actually manifes...
I want to beam into solid concrete as a bomb. I have transporters and unlike Star Trek I'm not afraid to use them. Terrorists have taken the tech and have nasty plans for us. The bomb is 1 kg sphe...
We actually today have programs to keep an eye out for various rocks in space that may hit Earth. It's a common sci-fi trope that when one is on course to hit us, we deflect it. That's pretty muc...
Suppose someone dropped a black hole into our lovely Sun a few million years ago. It was big enough (far bigger than that) from the start to eat matter faster than radiating it away, and kept growi...
After reading the following question, I know that there are not that many solutions to the 3-body problem, and I know that a ternary system is unstable. The 3 stars all orbit each other in a rotati...
I want to launch the heaviest booster + spaceship possible in about 1.5 of earths gravity, using the technology we currently have. To make things easier, imagine there was the same atmosphere as on...
What would it look like if a human (with the proper protection) walked across a lava stream? Assume that 'proper protection' means some way of insulating against the heat so that they don't get...
Sadly, the asteroid belt isn't the place to showoff your ace pilot skills. It is so sparse you wouldn't even see an asteroid most of the time if you flew through it. But Saturn's rings! The rings ...
On the earth today most animals use a two sex mating system where male and female provide the same amount of genetics to the resulting offspring, despite the fact that in many cases the female prov...
Wikipedia states: "Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field." This one ...
I read this and wonder now, what if we would introduce a new planet to our solar system; would the force of gravitation demand a similar plane as that of the other planets? Mercuries 6.3° indica...
On Mars any initial colony will be power limited. Power sources can be brought from Earth, but any power generation capacity would reduce the mass available for other, more useful cargo. Alternat...
The year is 2035 and Channel 55-KYED decided on a new reality show. the XXI century knighthood games. It will be your basic renaissance faire re-enactment of medieval combat but since they are doi...
In this near-future setting, biotechnology is slightly more advanced than our own. Genetic engineering is cheap as well, but due to an ecological disaster the environment just doesn't have enough c...
Assume that space warfare is dominated by gamma and x-ray lasers (Wakefield-Plasma and Free Electron Lasers) capable of killing targets several light-seconds away. Stealth in space is possible due ...
I recently saw this answers where it was suggested that the galactic core could illuminate a planet suffiently to make sure it is always summer on one side of the planet. This got me curious and af...
Fire is certainly high up on the top ten list of mankinds most useful inventions. It allows for a more efficient utilisation of nutriants, is the basis of chemistry and the material sciences, allow...
I've seen some posts here (for example this one) for the effects of certain sizes of impactors, but I'm not finding any definite answer and all my google and google scholar searches have not turned...
So, I am writing a comic which will perhaps grow into an entire series about a group of aquatic heroes. One of those heroes is a monster size aquatic lizard. The story of how this lizard came about...
In a world like ours in the 1980s, but which for whatever reason does not use any form of electricity. (Either it does not exist or batteries and generators etc have not been invented.) For purpos...
An interstellar traveller stands upon the surface of an alien planet beneath the light of an unfamiliar sun. The planet upon which he stands orbits one star of a binary system in which one is a G-c...
I was watching a program about the New Horizons space probe and was fascinated by the new revelations about cryolava/cryomagma, and the amorphous planes covering Pluto(98% nitrogen ice). I'm wond...
