Questions tagged [spaceships]

For questions involving implemented theory or technology for travelling through space. Consider also [space-travel]. See also the tag information (click "info") for more details on when this tag applies.

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5answers
279 views

Maintaining an advantage in a world of infinite acceleration capabilites

Technical Suppose that someone showed up very few years ago and started selling out spaceships ships are capable of arbitrarily high acceleration, the drive is integral to the hull and moves the whole ...
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7answers
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Maintaining an advantage in a world of reactionless drives [closed]

Suppose, because I can't be bothered explaining the exact setting, that someone showed up tomorrow and started handing out spaceships with reactionless drives to anyone who asked for them. These ships ...
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1answer
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Best design for Plasma Magnet Sail/Catch

What's the best design for a receiving end of a Plasma Sail/Catch. That is, (ignoring the specific means of how for now), a broadcaster in solar system x sends out a soup of macro-scale particles at a ...
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12answers
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Space Piracy, a case study

I was reading James Blish again the other day and came across a passage wherein he suggested, with all seriousness, that the only article required to create a new age of piracy was ships that didn't ...
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7answers
213 views

Hard Sci-Fi hardlight-based "energy shield" [duplicate]

I'm making a fairly hard Sci-Fi story, and I was wondering what the most scientifically plausible Hardlight-based 'energy-shield' (for ships and stations) would be. My world tries to remain true to ...
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6answers
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Justifying one level tall spaceships

I enjoy playing FTL: Faster Than Light and got inspired to write my own but more sophisticated 2D strategy game with the focus on custom ship construction. I want to have many systems on board which ...
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3answers
159 views

Would spacecraft suffer from fevers?

Spacecrafts produce a lot of heat, which must go somewhere if the inhabitants don't want to die. And in space, the only way to get rid of the heat is to radiate it away One way of achieving this would ...
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5answers
691 views

If we built spaceships on the Moon, would we have more fuel to burn for trip to Mars [closed]

I read somewhere that a lot of the fuel used for Earth-to-Mars trips is burned up in the first few hours -- leaving Earth's gravity well. Working on the premise that it takes a whole lot of fuel to ...
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2answers
250 views

What will real space vehicles look like in the future?

Most sci-fi today is imho unimaginative and unrealistic when it comes to future orbital and interplanetary vessel design. What will spaceships and habitats look like when we build them in zero-g using ...
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5answers
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Would a spacecrafts artificial gravity give it an atmosphere?

Artificial gravity is a staple concept of science fiction. Not much focus is ever put into explaining it for time and convenience as it would distract the audience from the story. Realistic sci-fi ...
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2answers
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How close can a launch pad be to a lunar base?

This is for a base that has been built up into a big, complex place. For the radiation safety of long-term residents, the walls are very thick. There are windows, that are quite large. They have quite ...
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13answers
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How discreetly can a small spacecraft crash land?

A scene in my story involves the main character encountering a crashed spacecraft while collecting firewood for his village, and keeping it a secret for several months. The spacecraft is about 20 ...
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2answers
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How would you build an emergency launch rocket?

I'm thinking of something akin to a space lifeboat designed to rescue crews of ships that are disabled in orbit and that would need to launch in a hurry without a lot of warning but that would also ...
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2answers
86 views

Does it make sense to put solid propellant in a funnel?

A particular spacecraft engine is designed to work with a propellant made up of very dense dust. If this engine was on a ship that was designed for constant acceleration through space, would there be ...
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4answers
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What Internal design would allow a spacecraft to be powered only by water?

Spacecrafts that harvest ice are not out of the ordinary, there’s even research being conducted about steam powered spacecrafts (steampunk spaceships anyone??). But I want to engineer a ship that uses ...
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0answers
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What is the highest g planet that can be escaped with current rocketry technology? [duplicate]

A spacefaring race in my story evolved on a high g planet. This made them smaller, stockier and stronger than most other spacefarers. The question is just how high their planet’s gravity could be ...
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26answers
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Why are UFOs disk shaped?

What’s the deal with flying saucers? There’s no drag in space, so alien engineers don’t have any limitations placed on them when it comes to ship design. Yet the ships portrayed by media look like ...
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8answers
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If stealth in space doesn't work, how might you hide?

While there have been numerous arguments about ways of actually pulling off stealth in space, what I'm interested in is the scenario in which you can't conceal your presence in the conventional sense ...
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7answers
770 views

What is the most plausible way to lower cost to orbit?

Of the general options that exist in terms of hypothetical space launch systems, what is the most plausible option for a relatively near future SF setting? The focus here is on Earth to LEO, as the ...
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2answers
130 views

How big do a fusion reactor and bank of capacitors following it up have to be to power a mass driver into space?

(Hi, please be kind - first poster. Also, didn't know if it'd be allowed to put hard-science on something like this, so going with ...
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7answers
425 views

Earth-killer challenge

Related to this question. A lot of the discussion there got sidetracked from the question of orbital physics, into questions about alien motives and what the humans would do, so I want to start a new ...
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9answers
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Mechanics of infrequent meteor attacks

There is an Earth-like world, at a level of technology similar to the ancient Romans. Roughly every 20 years, one of the largest, most prosperous cities in this world is annihilated by a meteor ...
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7answers
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Could a combination of cheap energy and powerful thrusters turn good aerodynamic design into something that isn't always worth the cost?

For a science fiction setting I'm working on, I'm trying to make a clear division between ships made exclusively for space flight, atmospheric flight and dual-purpose ships that can fly in both. The ...
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9answers
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Could near light speed space ships be used to destroy a civilization?

I once saw in a reply to a comment to a youtube video, someone suggesting that as a fermi paradox solution, once civilizations get the ability to create near light speed spaceships, a few nutcases are ...
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1answer
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How do I get Ironclads/Submarines lifted into an in-atmosphere wormhole that leads into another identical one?

I am working on some lore for an overhaul mod, but I want to try to stay away from handwavium as much as I can, at first. There's two terran planets connected by many stable wormholes, the most ruckus ...
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1answer
102 views

Space station stable population

An isolated space station that has 18 lab grown babies every day. The average lifespan is 120 years. What is the total size of the population for the birth death rate ratio to be even? Im having a ...
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3answers
230 views

What would the economy of a nomadic, spacefaring civilization look like? [closed]

For a writing project, I'm trying to break the mould of some others involved and depict nomadic people who travel in enormous colony-ships, searching for life-bearing worlds similar to their own and ...
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1answer
528 views

What would be a good engagement distance for space ships, assuming it took place in the sol system

(Edited due to oversights and ridiculous numbers) So I was curious about this. I know similar questions have been asked but they all have specific parameters that are different from mine. All ships ...
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10answers
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Why should humans kill this space creature?

I thought about a fictional universe where humans populated most of it. I was thinking about a space creature that roams from planetary system to planetary system and I created this thing: They are ...
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16answers
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How can gravity shielding be defeated?

In this science fiction universe, that has somewhat tough science in it, paragravity is an established technology that is used to its fullest potential. Which lies the problem where warfare is ...
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10answers
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Could a spaceship be efficient enough to be invisible without breaking physics?

Spaceships give out a lot of heat, due to the fact that things produce heat and that heat must go somewhere. But, could a device exist in space that is efficient enough that the heat it produces (and ...
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3answers
323 views

Can we have a civilization living at close to the speed of light?

Imagine many ships traveling close to the speed of light. If they diverge paths to explore distant galaxies, they could calculate their travel so that the same amount of time passes for all ships. ...
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3answers
346 views

In space is it better to use cannons instead of railguns?

A problem in space is a lot of the time heat dissipation. Another big problem is if you are set off course by the forces that the gun shooting inflicts on your spaceship. For the same speed and ...
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5answers
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Why does my arcology let light in, when it was originally a sleeper ship

In my story the protagonist lives in an arcology, but this is not just any arcology. Over a 100 years ago, a global war fought between those who sided with a massively distributed and rather 'insane' ...
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2answers
101 views

Using a wormhole to get propellant in space?

Would it be possible for a spaceship to fly through space with the propellant stored off-ship through a wormhole? The propellant-tender end of the wormhole wouldn't need to move, so the ship-end ...
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2answers
609 views

How would a dirty space station with no artificial gravity look?

Just a weird question that popped in my head, but since the only real space station in existence always keeps itself squeaky clean, I wonder how one that doesn't have cleanliness as high priority ...
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3answers
852 views

Can my 3-Dimensional-Space character orbit around a 4-Dimensional-Space planet?

The setting is as follows: a 3-Dimensional-Space(3-DS) character/Spaceship has entered the 4-DS and has encountered a planet (from far away). Now he wants to orbit around it, but the planet is a 4-DS ...
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5answers
676 views

Black hole minefields

A civilization has developed black hole guns and Hawking Radiation stabilizers while warring with other civilizations in their stellar neighborhood. Currently, they can create black holes up to 1000 ...
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2answers
88 views

How much weaponry would a space carrier have? [closed]

By carrier I mean people This is in the distant future so we can ignore the materials and the time it would take to make it. Lets just say the government have the required materials to make it. The ...
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3answers
110 views

Decent present or near future propulsion system for moving around in orbit or changing orbits

For the world I am constructing, I trying to come up with a spacecraft that could be reasonably be built with present or near future technology that could travel around and change orbits relatively ...
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11answers
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What would the scientific explanation be for an energy source that can last 130,000 years?

I am playing with the idea of an alien ship landing on earth 130,000 years ago. Over time it's covered up with water and sediments and is eventually discovered in modern day. It contains numerous ...
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0answers
111 views

Fusion Orion Drive

Orion drives are awesome. Nobody can deny that. They are however a little outdated and still use pure fission pulse units. Obviously they are in need of an upgrade! A good place to start would be ...
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2answers
423 views

Is my space combat system realistic?

The Basics There is no FTL. Most spacecraft use He3-De fusion Torchdrives, capable of performing sustained multi-gee burns. Most torchdrives can also use fuel that is delivered by accelerators ...
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1answer
121 views

How long could a reasonably fit human pilot survive 5g while not using submersive solutions?

For purposes of this discussion, assume NO use of fluid immersion or increasing the pressure of the breathing gas to counteract the external pressures on the pilot, nor putting the pilot in any kind ...
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4answers
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How plausible is this spacecraft design?

The idea is that the spacecraft would not have a propellant tank on board, but instead would have a huge, spherical propellant tender which the spacecraft could climb around in order to turn. This ...
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2answers
158 views

Heat shields made in space out of rocky source material - cheap way to get cargo to Earth?

Let's say there's an operation one day producing items from asteroid and lunar material in orbit, and they want to ship goods to Earth. They try making cheap heat shields by processing rock and ...
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6answers
2k views

Starship wreckage after uncontrolled reentry

Take a large spacecraft. I'm thinking about 1,000,000 metric tons and 3,000,000 cubic metres, but I don't think a factor of 10 either way would change things. The ship is heavily designed and capable ...
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3answers
264 views

Huge Acidic Planet [closed]

I have this planet that is mostly composed of an unknown acid. Lets name this acid, Substance X. However we can survive on this planet with basic rubber suits, as this acid cannot burn through rubber ...
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4answers
3k views

Is the universe old enough to have an ecosystem of feral self-replicating spacecraft?

Is it possible that, through any plausible history of alien life, and any plausible method of propogation for a self-replicating spacecraft, that the universe, as seen from present day Earth, could be ...
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20answers
8k views

Why would there be any use for sea shanties in space?

I understand that sea shanties were a type of work song, and often used to help sailors operate in sync with each other. They've survived as an art form, but so far as I know they don't have any ...

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