Posts tagged space
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...
I've been imagining an RPG universe consisting of eight solar systems orbiting around a black hole in a finite universe with an edge, and I'm wondering what the night sky would look like to beings ...
Imagine your scientists have found a way to increase the space of your empire, literally: They are able to create an artificial inflaton field which locally creates a "space bubble" connected with ...
If an Earth-like planet was tidally locked to a star similar to Sirius A, at which distance from the star would the night side be able to have liquid water, possibly with an average temperature of ...
We've created a series of mechanisms to terraform the temperature and atmosphere to be Earthlike. My geologists are screaming at me, because a lot of features are being rapidly eroded by the new h...
It's well established that the human body does not do well in zero gravity. Symptoms such as fluid loss, muscle atrophy, bone mass loss are well known. Less well known problems extend to such mun...
Assuming only plausible advancements in science, a Martian colony is established before the end of the century. (Sooner if possible). What materials would be needed in regular shipments from Earth?...
Let's say that I want to colonize a planet which is basically like mars but has got an atmosphere which still has extremely low pressure but consists mainly of oxygen. The temperatures are more or ...
Hijacking DaaaahWhoosh's backstory, let's say our sniper takes the shot anyway, but he accidentally hit one of his weather balloons he set up, and now he's out of tungsten bullets. Frustrated, he d...
Please note for this, assume technology is being used for their creation, not any kind of space major or anything. Edit: Removed the ability to do so within systems without having generators on b...
A really simple question - if you built a space elevator then you continue building past the geostationary point to put tension onto the tether. Now if you keep building out further and further the...
You're in a group of colonists, headed to your new home on Tau Ceti e. Due to some crazy accidents aboard the ship, the diverse flora that was brought aboard (for food during the journey and for ag...
Set in the year 2015 A.D. Every morning when you wake up from bed and look outside the window, you notice that the sky seems getting darker every day. We were told by the authority that there's no...
This question asked about aliens launching meteors at major metropolitan areas on Earth, but explicitly excluded the accuracy of the meteors from the question. In this specific scenario aliens ...
Follow-up-question to this scenario: ~ 2750 A.D : Quite a few asteroids/celestial bodies have been move to a stable earth orbit and are beeing mined for ressources. I am currently designing the eco...
Everything on Earth and in the Solar system is as we know it. However it is discovered that we live in a small but unbounded universe. That is to say if we travel far enough in a straight line we w...
Researching efficient methods of no-FTL methods often turns up engine solutions that are efficient in the sense that they have a higher specific impulse, but most such solutions seem to have a comp...
Assuming fission thrusters as described here: Would a nuclear fission thruster with continuous fuel injection be possible?, and assuming drilling for the planet's molten mettle core as discussed he...
I'm always interested in the possibilities of human creating an orbiting space habitat like Stanford Torus or O'neill Cylinder. Those habitats were designed to support certain numbers of colonists....
Centuries ago, humanity have been incorporated into an alien hive mind, spread by a bacterial-like infection. The "bacteria" infects the blood and brain and allows the infected to join their minds ...
Imagine a world with a dead core, like Mars, but covered in water. This world has managed to hold on to its atmosphere and quite a bit of its water as well. I'm sure the prodigious life there would...
If there's one thing that solid celestial bodies have, it's dust. Dust plus water is mud. Mud plus heat is brick (and recoverable water vapor). The heat can come from a reflective solar array. Easy...
Imagine the speed of light is 100 times that in our universe. Light from the moon takes about 1/100th of a second, the sunlight reaches our eyes in about 4 seconds, from nearby Alpha Centauri in ab...
I've been interested in binary systems lately, and I was recently wondering what Earth would be like if it was in a binary orbit with another Earth-like planet. Both planets exhibit the following ...
Hanorane (han-or-a-ney) is a moon with a dynamic surface covered in charged sand particles that drift in massive rivers suspended by electrostatic levitation. The only solid ground is the worn an...
It's the year 2050, and you're the planner for a manned mission to Pluto - New New Horizons. The mission will take 5 years round trip, and there are 40 members of the crew. What's the most effici...
In the classic idea of a Tokamak Fusion Reactor, plasma races around an electromagnetic track. Is it plausible to "spin" off some of this rapidly moving plasma and direct it to nozzles for use in...
What would happen to a planet if it was really massive, like something around the size of the sun (likely made of asteroid materials)? What kind of environment might it have? What would happen to ...
Bioships - biological spaceships - appear in a lot of SF, so I thought I'd have a go. However, in most books they are depicted as more powerful than conventional tech in all and any regard. This ...
In my world, Earth populated the Moon. Even if people are concealed in stations they got to go out from time to time (to explore or repair things that robot can't). My question is: Is it possible...
Bob escaped from his exploding spaceship in the world's most ghetto escape pod - an airtight metal box, with only some respiratory gear ($\text{O}_2$ tank, $\text{CO}_2$ filter) as company. Now he'...
(Disclaimer: I tried this question earlier in the scifi site as well as real science sites, and was told should be on topic here) I'm writing a speculative story about aliens coming to earth - and...
Would it be possible to modify a human to be able to survive in space without protective gear? Genetic engineering and cybernetic enhancement are both allowed, although when not in space the perso...
A class F star (1.4 times the mass of the sun — it has to go supernova) is expanding into the red giant phrase. Its Earth-like planet, with life on it, has slowly been pushed out of orbit as it exp...
What would a human colony on the moon look like? I already asked a prelusive question here about the safest place to start a moon colony but I needed further informations. After some answers, I re...
I was watching Star Trek, and I thought that the shape of the Enterprise is quite weird. So what do you think a big spaceship like the Enterprise would look like? We assume in this case that the p...
Let's say there's an OCEAN planet smaller than Earth but larger than the Moon. The Sun lights on the ocean planet reflecting the water textures onto Earth. Would it be possible to see watery refle...
Is it possible to manipulate all artificial satellites(including ISS) and space junks currently in orbit to fall into Earth's atmosphere in one go? (Tech level is late 22nd century science) Note: ...
Several light-years away, an alien species has just discovered Mars. They deem it a candidate for colonization, so they launch a Voyager-like probe to get a closer look. They have no idea that ther...
This was spawned from this question about Blueshifting (BS) when traveling near the speed of light. I had found this while learning about the other question. @99.99995 percent c And interes...
One of the biggest 'immortality sucks' issues has always been the question of what to do with the new people being born. Without death, a world's limited resources can't keep up with a never endin...
I am wondering, what mechanism would be needed to generate gravity on a space ship in interstellar space, like we see it on Star Trek or Star Wars? What is the most realistic hypothetical way what ...
I hope this isn't a stupid question ("just add air"). I would like my intrepid explorers to have drilled through the ice of Europa and into the water without creating a geyser (they plugged the ho...
I'm designing a video game in which players command a small crew of aliens (10-20 of them) who are building an outpost on a planet. They are a bit larger than humans (around 2 meters tall) with abo...
As far as I understand, when you fuse deuterium (H-2) and tritium (h-3), you get a helium atom and a spare neutron. Basically alpha-rays? Now alpha rays are easily blocked by matter. You can block ...
Inevitably, we will be colonizing and impacting other planetary bodies, whether for establishing life or drilling/mining. Today, you can expect on Earth there will be environmental requirements fo...
What are the challenges involved in such a project? Could you use an asteroid re-direct style mission to do the job, or use some sort of fuel based thrust etc. Please limit answers to those concer...
I'm putting together a solar system for a story I'm working on, and in this solar system the most important planet is a particularly large Ice giant and its big moon nestled in the star's habitable...
Hawking's radiation emits particles from a black-hole. Lets play with the idea of harnessing a mini black hole in the center of a star-ship. Let alone harnessing the gravity pull to the front and ...
