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Q&A

Posts tagged space

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Q&A What are Some House Games for Free Fall? [closed]

Living in space can be boring. What are some good home games for people living and working in free fall? I thought of a few - Bocce : in this variant the size of the jack and the player balls i...

0 answers  ·  posted 2mo ago by James McLellan‭  ·  closed 2mo ago by Canina‭

Question space physics sports
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Q&A How would an interstellar spaceship's speedometer work if everything else is moving?

A speedometer is a gauge or device used for measuring instantaneous speed of moving vehicle roughly speaking, so for example the reading shown on the speedometer of a car parked at road side displa...

14 answers  ·  posted 7y ago by user6760‭  ·  last activity 2mo ago by James McLellan‭

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Q&A Exploration of a 50 mile high mountain

My friends and I are building a world with a 50 mile high volcano on it. The mountain is the result of some bored god deciding to play a joke on everyone. Or, some other god got angry and decided ...

6 answers  ·  posted 5y ago by Green‭  ·  edited 1y ago by Canina‭

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Q&A Centripetal Burn in Orbit

Imagine a spacecraft in a highly eccentric orbit. Say the craft burns at periapsis towards the planet such that its orbital eccentricity does not change and the craft's periapsis moves with the shi...

1 answer  ·  posted 2y ago by Josh Hyatt‭  ·  last activity 2y ago by Olin Lathrop‭

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Q&A Exploration of a 50 mile high mountain [duplicate]

My friends and I are building a world with a 50 mile high volcano on it. The mountain is the result of some bored god deciding to play a joke on everyone. Or, some other god got angry and decided ...

0 answers  ·  posted 2y ago by Green‭  ·  closed as duplicate 2y ago by Canina‭

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Q&A Is it realistic to see satellites moving across the sky centuries after humans stopped space activity?

After an age of highly developed technology, including many different satellites in various Earth orbits, humanity loses the technology needed to control those satellites. After many centuries, how...

1 answer  ·  posted 2y ago by celtschk‭  ·  last activity 2y ago by Green‭

Question space satellites
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Q&A Can a galaxy be formed from a black hole?

I'm writing creative text and I'm curious to know, just as possibility, can a galaxy by any chance be formed out of a black hole?

3 answers  ·  posted 2y ago by 01e5Dk‭  ·  last activity 2y ago by 01e5Dk‭

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Q&A Could special relativity be caused by aliens jamming the Solar System?

A federation of alien spacefaring nations is doing basically the opposite of prime directive: they are jamming the Solar System, preventing us from leaving it. They are doing so by placing some de...

8 answers  ·  posted 2y ago by o0'.‭  ·  last activity 2y ago by o0'.‭

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Q&A Is this a reasonable way to enforce a ban on exotic weapons in an interstellar setting?

In the late 23rd century certain groups of mankind stared down the barrel of what may be possible in the future: cross galactic relativistic kill missile storms, gamma-ray Dyson Beams, Kugelblitz b...

3 answers  ·  posted 2y ago by TheDyingOfLight‭  ·  last activity 2y ago by TheDyingOfLight‭

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Q&A Could aliens from beyond the singularity of a rotating black hole survive and colonise regions of a normal universe?

Would it be possible for aliens that originated and evolved in a planetary system beyond the ring singularity of a rotating black hole to send individuals out into a normal universe to colonise it?...

2 answers  ·  posted 2y ago by Ichthys King‭  ·  last activity 2y ago by Ichthys King‭

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Q&A Alcubierre Drive without FTL?

Would the principles at work in the theoretical Alcubierre warp drive apply to a slower-than-light starship? I'm building a setting in which FTL communication and travel is impossible, (due to vio...

5 answers  ·  posted 2y ago by Tim McClelland‭  ·  last activity 2y ago by Tim McClelland‭

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Q&A Cylindrical radiators on spacecraft?

Having your radiators tactically protected from enemy fire by the armor shape of your space warship is nice, but having a regular one or double-sided radiators is still a vulnerability. Other conce...

2 answers  ·  posted 3y ago by zertofi‭  ·  last activity 2y ago by zertofi‭

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Q&A Most Likely Way to Protect Against Infectious Disease When Visiting Other Planets?

In various science fiction works, we see our plucky heroes beaming down to, or flying down to planets other than their own. They meet with the inhabitants there, be they human or otherwise and then...

5 answers  ·  posted 2y ago by Ralph Bolton‭  ·  last activity 2y ago by Ralph Bolton‭

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Q&A Is radar better than visible light in deep space?

On the earths surface, radar is pretty sweet. It apparently penetrates the atmosphere well and bounces back and can be detected. I think this has to do with the wavelengths absorbed by our atmosp...

8 answers  ·  posted 2y ago by Willk‭  ·  last activity 2y ago by Willk‭

Question space light
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Q&A How would the Politburo respond to Project A119?

In 1958 the United States Air Force considered a mission to detonate a nuclear device on the surface of the Moon. The endeavour was framed as a booster to American public morale in the wake of the ...

3 answers  ·  posted 2y ago by Jem‭  ·  last activity 2y ago by Jem‭

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Q&A How can a massive ship be partially destroyed in reentry, but have the top part still intact?

In my world a giant ship attempts to land on a planet, sadly it fails. Fortunately the top half is intact but the bottom is ripped up, holes all over it, basically destroyed except for some lucky s...

7 answers  ·  posted 3y ago by Topcode‭  ·  last activity 2y ago by Topcode‭

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Q&A The economics of laser sails vs fusion rockets

What would be the economic trade offs of building fusion powered rockets vs building laser relays across the solar system? What assumptions would you need for each one of these to be the superior o...

4 answers  ·  posted 3y ago by Adam Reynolds‭  ·  last activity 2y ago by Adam Reynolds‭

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Q&A Artificial oxygen oasis in an otherwise CO2 atmosphere

I wonder if it is possible to install artificial equipment that would exhaust oxygen into air in otherwise CO2 atmosphere so that locally people could breath in open air without any kind of tent or...

3 answers  ·  posted 3y ago by Anixx‭  ·  last activity 2y ago by Anixx‭

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Q&A Space station scenario feasibility

I have settings with orbital colonies around the earth. First off my idea is, if it is not profitable we would not fund it en masse. Therefore I came up with the idea that in the future we discover...

4 answers  ·  posted 3y ago by Prahara‭  ·  last activity 3y ago by Prahara‭

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Q&A Would it make sense to send potential human colonists on the initial manned expedition to a habitable, Earth-like planet?

In the near future, humanity has spread out across the Solar System. A new planet is discovered, let's say 30 light years away, that shows it to be Earth-like and could harbor Earth life without to...

5 answers  ·  posted 3y ago by Space_Cadet‭  ·  last activity 3y ago by Space_Cadet‭

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Q&A Where would a technologically advanced group of people forced into space by a calamity obtain water from?

The fleet in my setting are forced to leave the planet due to a volatile virus, and leave in pre-prepared spacefaring vessels capable of transporting ten million people per ship. The ships have alg...

7 answers  ·  posted 3y ago by Niobium_Sage‭  ·  last activity 3y ago by Niobium_Sage‭

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Q&A What percentage of stars would need to become Shkadov thrusters to move the whole galaxy?

The advanced civilization in my story is trying to reach as many galaxies as possible in the next few billions years before the expansion of space has sent those galaxies permanently out of reach w...

1 answer  ·  posted 3y ago by RandySavage‭  ·  last activity 3y ago by RandySavage‭

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Q&A Would would occur if a person travelled from a wormhole in flat empty space, to one on Earth?

We are using a Morris-Throne Wormhole Metric. Let's presume the throat of this wormhole (in internal hyperspace) is short, let's say 1km. Now, as you are travelling through the entrance wormhole,...

1 answer  ·  posted 3y ago by MrKred‭  ·  last activity 3y ago by MrKred‭

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Q&A What is the force of impact for a failing space elevator given the following conditions?

The local sapient species on a relatively Earthlike planet has constructed a space elevator. It is anchored along the equator. Due to unfortunate circumstances (and potentially divine intervention)...

2 answers  ·  posted 3y ago by MUSE-42‭  ·  last activity 3y ago by MUSE-42‭

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Q&A How would one detect a black hole when there are no more light sources for it to refract?

The universe as we know it has ended. The concept of "natural" illumination ended when the last red dwarves and quasars died out. Now, only brown dwarves and blackholes dot the empty void that was ...

5 answers  ·  posted 3y ago by In the name of the story‭  ·  last activity 3y ago by In the name of the story‭

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Q&A Why would a sleeper ship be designed to only wake one person in case of emergency?

Starliners are huge colony ships. They carry enough equipment, building materials, embryos, colonists and nutrient rich rations to permanently establish a sizeable colony on a far-flung world. Alth...

36 answers  ·  posted 3y ago by Joe Bloggs‭  ·  last activity 3y ago by Joe Bloggs‭

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Q&A What might cause a civilization to be unable to colonize a large moon but live in space stations around it instead?

In my world a moon is reached and colonised but only in space stations for a long time. They gain the ability to reach the surface and then story happens. It needs to be something that can be bypas...

25 answers  ·  posted 3y ago by Topcode‭  ·  last activity 3y ago by Topcode‭

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Q&A What laws of physics would need to be broken in order to travel in space faster?

I have a spaceship which I want to have travel very quickly around a system like our own solar system -- let's say about 10 million miles per minute, which would go from Mars to Earth in ~15 minute...

4 answers  ·  posted 3y ago by LukeN‭  ·  last activity 3y ago by LukeN‭

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Q&A Would it be possible to build numerous spaceships that could transport 10 million people in the late 2100's?

The crafts would have to contain large farms in order to sustain the immense amount of people, and they'd obviously have to be large and spacious to have good living conditions. I did some research...

2 answers  ·  posted 3y ago by Niobium_Sage‭  ·  last activity 3y ago by Niobium_Sage‭

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Q&A Binary Star System Build - Alpha Centauri

I'm not sure if this site or Astronomy would be better, but I figured I would try here instead. I am attempting to create a [semi]plausible star system in Alpha Centauri for a series. The system w...

1 answer  ·  posted 3y ago by user72655‭  ·  last activity 3y ago by user72655‭

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Q&A Despite almost zero energy consumption why does my spaceship scheduled cryostasis in shifts?

In the distant future a breakthrough in cryostasis technology can put healthy people into frozen state so that all metabolism halts and cells never age a bit, the spaceship is carrying them across ...

12 answers  ·  posted 3y ago by user6760‭  ·  last activity 3y ago by user6760‭

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Q&A Question about Kessler syndrome

I'm writing a novel set in a post post-apocalyptic world, where society on Earth collapsed a long time ago and has rebuilt itself by the time the novel starts. I need a reason to keep the people ...

4 answers  ·  posted 3y ago by Dashane Du Plessis‭  ·  last activity 3y ago by Dashane Du Plessis‭

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Q&A Minimal mass of an Earth-like satellite to seriously deter space travel?

I want to write a story taking place on the natural satellite of a gas giant, with said satellite being massive enough to prevent, or at least strongly deter, space travel, such that the resources ...

1 answer  ·  posted 3y ago by Udon Nomaneim‭  ·  last activity 3y ago by Udon Nomaneim‭

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Q&A How to handle transhumanism vs space colonization

Given the difficulties in doing things like constructing O'Neil cylinders or habitats on places like Mars, is it at all plausible that current humans could ever really colonize anything in space? I...

4 answers  ·  posted 3y ago by Adam Reynolds‭  ·  last activity 3y ago by Adam Reynolds‭

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Q&A Human labor required to setup automated mining outpost on faraway planet?

Glossing over the technological implications of interstellar travel, what sort of human labor might still be required in a future where we are capable of setting up nigh-fully automated endeavors o...

4 answers  ·  posted 3y ago by Delirium‭  ·  last activity 3y ago by Delirium‭

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Q&A Landing on a new planet in Earth's near future, how long before they can reproduce the technology they came with?

So given an Earth in our near future, year 2100 or so, where some of our tech has improved to the point where we have robots and the usual sci-fi devices for interfacing with computers. A colony i...

2 answers  ·  posted 3y ago by John‭  ·  last activity 3y ago by John‭

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Q&A Asteroid mining: Good for the environment?

What if there was a binding global resolution passed tomorrow mandating that all countries gradually close down their terrestrial resource extraction sites and instead source from asteroid mines? W...

6 answers  ·  posted 3y ago by Jem‭  ·  last activity 3y ago by Jem‭

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Q&A Science of Green Lantern and solid light constructs

Many know that the Lantern Corps of DC Comics are capable of constructing objects of any shape or size out of hard light using their power ring fueled by their emotions. However, I'm wondering what...

1 answer  ·  posted 3y ago by Strivs‭  ·  last activity 3y ago by Strivs‭

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Q&A What FTL models are appropriate given my constraints?

I'd like to have faster-than-light travel (and communications) be an late-game option for a video game I am working on. The extent of the playable universe is approximately 4 million light years in...

5 answers  ·  posted 3y ago by John O‭  ·  last activity 3y ago by John O‭

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Q&A Would sound shifts be severe enough for two dialects to be mutually unintelligible after 400 years of no verbal contact?

A group of English-speaking settlers travel to the Earth-like exoplanet of Rataan, which is 5 light years away. They board the generation ship Genesis that will reach Rataan in 200 years (0.25% of ...

2 answers  ·  posted 3y ago by galactic_analyzer‭  ·  last activity 3y ago by galactic_analyzer‭

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Q&A How can I estimate the maximum mass that can be safely handled in low to no g?

Many countries, authorities and companies have the concept of a maximum weight limit for manual handling, both to protect their workers and to protect themselves from lawsuits. Interstellar Shippi...

5 answers  ·  posted 3y ago by Joe Bloggs‭  ·  last activity 3y ago by Joe Bloggs‭

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Q&A How did aliens on a habitable planet hide themselves during the recon and scouting stage by human colonists?

We've found a habitable planet orbiting a red dwarf star some light years away and conditions are Earth-like enough that a colonization project was initiated. Before any humans landed on the planet...

12 answers  ·  posted 3y ago by Faz‭  ·  last activity 3y ago by Faz‭

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Q&A Could co-orbital planets also be double planets?

Double or binary planets are a really cool science fiction idea. A second Earth hanging ominously in the sky. Co-orbital or trojan planets are also interesting in that you have them on more or less...

2 answers  ·  posted 3y ago by Axion‭  ·  last activity 3y ago by Axion‭

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Q&A Solar expansion and habitability

Is there a feasible setup where the Sun has expanded enough to make the Earth uninhabitable, but some of the other rocky bodies in our solar system (past Earth) become more reasonable colonisation ...

3 answers  ·  posted 3y ago by Dee‭  ·  last activity 3y ago by Dee‭

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Q&A Building a spaceship alone in the wilderness

I am currently working on a character backstory for somebody whose fictional character gets sent back in time an era before his species existed (essentially to bronze-age times or even earlier, it'...

11 answers  ·  posted 3y ago by TCC‭  ·  last activity 3y ago by TCC‭

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Q&A How close an orbit could you get to Earth with a planet-sized object/ship without severely disrupting Earth's orbit?

My idea involves an alien spaceship inside a roughly Earth to Mars sized/massed planet, but the whole planet is displaced when the drive is activated. If you wanted to travel back to our solar syst...

3 answers  ·  posted 3y ago by DWKraus‭  ·  last activity 3y ago by DWKraus‭

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Q&A I'm formulating a planet that has silver dust on its surface, and ideally has rivers of mercury flowing on it, possible? Human survival not necessary

I'm new to this and my scientific knowledge is massively lacking in this area (so please take it easy on me!) I'm writing a historical science-fiction novel. Parts of it set in the past (1977) and ...

3 answers  ·  posted 3y ago by RJ0001‭  ·  last activity 3y ago by RJ0001‭

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Q&A can spacecraft heat be 'vented' with entangled particles?

Basically, the title. Trying to figure out how reasonable stealth in space would function, and while I have mitigated it, I am looking for methods to improve it. But mainly, is creating a sort of h...

3 answers  ·  posted 3y ago by Daikael‭  ·  last activity 3y ago by Daikael‭

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Q&A How do I calculate the total time dilation experienced by an accelerating ship?

My advanced human civilisation often has high-acceleration ships travelling at near lightspeed. I know that time dilation would have a significant effect on the time experienced by the crews, but I...

1 answer  ·  posted 3y ago by Starsong67‭  ·  last activity 3y ago by Starsong67‭

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Q&A Building an interstellar starship during transit

Would it be feasible to have an interstellar vessel be constructed in flight after smaller sections are boosted up to speed? The idea here is about using laser sails which would be easier to use wi...

5 answers  ·  posted 3y ago by Adam Reynolds‭  ·  last activity 3y ago by Adam Reynolds‭

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