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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Restricted Directions for an Alcubierre Drive?

It's my understanding that if an Alcubierre drive were to be constructed, it would be able to function as a time machine because there would be certain paths through you could take to get to a ...
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what would the life of an AI actually be like? [closed]

I am currently writing a book where the Antagonist is a K2 machine civilization, and the protagonist is a galactic federation. I am building on a question I previously asked about how a K2 ...
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how viable would a star fighter really by in space warfare? [duplicate]

I have heard it said that such would not be a viable platform given that weapons would have such range and accuracy in space, that a star fighter could be sniped away before it even became a threat. ...
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Stranding my colonists on an alien planet they were supposed to eventually inhabit [closed]

So the background is that a colony ship has arrived in the orbit of a habitable, Earth-like planet. The colonists are in cryosleep and are being woken up in batches. An initial round of scouting the ...
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2answers
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What defensive technology for starships that would make them invulnerable? [closed]

Imagine a science fiction universe where... most races have a large amount of excess energy (i.e., fusion), AGI is very rare (not a consideration), interstellar travel is fairly standard via ...
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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 ...
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4answers
195 views

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 minutes. ...
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2answers
172 views

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, ...
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Economics aboard a colony ship [closed]

Suppose we have an interstellar generation ship, with an initial population of about 10,000 and a final population (on arrival) of about 20,000. Since they're traveling for sixty-some-odd years, ...
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3answers
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Can a coilgun be used to boost a traditionally or non-traditionally chemically powered weapon?

So, I was wondering if for small scale weaponry (150mm guns and smaller) using a coilgun to assist in the acceleration of a traditional chemically accelerated round, either while in the barrel burning ...
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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 concepts ...
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2answers
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How to make Space Habitats spin?

I have seen a variety of outer space megastructures across sci-fi and the minds of most astrologists, such as Bishop Rings, O'Neill Cylinders, Bernal Spheres, and much more. What most of these ...
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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 system ...
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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 ...
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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 heat ...
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1answer
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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've ...
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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 with ...
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1answer
86 views

Time reversal by the means of lightspeed

In Star Trek, going faster then light will take you back in time (Possibly in real life too!). But I've noticed one inconsistency. Ships, even when going faster then light, have a finite speed. By ...
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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 ...
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2answers
86 views

Magnetic sail on rotating ship

I'm thinking about a design like this generation ship, which obviously has spin gravity. Would the fact that the ship is rotating affect the use of a magnetic sail? The magnetic sail as a sort of ...
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2answers
244 views

How to prevent ship's AI from initiating self destruct sequence regardless of captain's permission?

Set in a distant future, every interstellar spaceship runs on antimatter propulsion which can achieve fractional speed of light travel. There is a doctrine stating that all spaceships with mass ...
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3answers
426 views

Crew needed for a large FTL spaceship [closed]

I want to rough out the crew needed for a large FTL spaceship which is on a survey mission. My basic scenario is my civ is recovering from a dark age and is exploring its surroundings using (ex ...
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6answers
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How can space cop arrest the suspicious spacecraft moving at sub-luminal velocity?

Set in a distant future, reports of alien and drug traffickings have been on the rise and there was mounting pressure for Mr User6760, president of intergalactic interpol to resign. The traffickers ...
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9answers
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Would near-lightspeed spaceships have an aerodynamic shape?

At speeds near the speed of light, interstellar particles and gas may affect the movement of the ship, and microscopic particles may even badly damage the ship. Would not it make sense to make the ...
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8answers
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Would making a last ditch effort to skip save the spaceship?

Imagine a spaceship entering Earth's atmosphere, it has lost control of its engines and is relying on its reverse thrusters to decelerate before crashing into the Pacific ocean. So in an attempt to ...
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3answers
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Why do flying saucers have to spin while flying?

Set during the Cold War period, the then-president rented five (5) flying saucers from the extraterrestrial aliens and a few training exercises were conducted in the air space above Roswell. My father ...
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119 views

Interchangeable rooms

So, in the S.S Portland (The main setting of my story) there is a variety of rooms. A lounge, a lab, etc. so, i was thinking that at some point, the lounge would be changed out for a 0-g pool. A band ...
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How do you send out SOS in space if there is no absolute coordinate?

Imagine your spaceship encountered a gravitational anomaly and discovered that you are lost in space, your computer tells you that you are still inside the Milky Way galaxy but it cannot find the ...
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4answers
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How would you design Turn-Signals on a Flying Car?

When designing a flying car intended for congested city routes with slow traffic, should turn signals indicate all possible directions. In most sci-fi, I've seen designs that have no turn-signals or ...
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7answers
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What would be the maximum distance from which a space ship could physically see a planet?

A plot point of my novel is that the pilot accidentally finds a planet that is being purposefully hidden (i.e. been deleted from all star maps). It starts with him arriving at a location that is just ...
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5answers
240 views

Preserving naval battle groups in space warfare

I want to have a somewhat realistic setting where space fleets have to close in to short distances, probably around 1000 km or less, in order to inflict damage. This will be only a few hundred years ...
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5answers
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A “time capsule” that can last for trillions of years?

The universe is dying because it has exhausted nearly all of its resources. Humans became the last species in the universe because of their resilience and sheer willpower. And yet, humanity still ...
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How to prevent crew from accidentally teleporting oneself outside a spaceship with portal gun?

Set in the year 3020 CE, every crew on board has a personal issued portal gun to easily get around the interior of the spaceship. The handheld portal gun can instantly teleport the user along with ...
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Is it believable to have a spaceship spin around a weight for artificial gravity?

In my narrative universe, there will be ships that use a 1g acceleration for artificial gravity. However, when they are not accelerating (whether on a longer journey at a constant velocity or simply "...
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2answers
234 views

Of all methods of FTL travel (or as close as one can get to it), what would be the most feasible to have been invented in the next 100 years?

It's the late 2020's, and humanity has expressed an unprecedented and powerful renewal in the interest of space exploration. Sometime between then and the turn of the next century, a practical form of ...
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4answers
282 views

What reasons are there for using an interstellar ship that can only carry 8 people to settle another planet? [closed]

In my story a civilization has reached the point where they want to colonize another planet. They encounter a problem. Their spaceship can only carry a crew of eight (8) people. Specifics of the ...
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How to hide a spaceship visiting Earth?

So, me and the boys have decided to take a trip down to Earth for reasons that matter not be it science, leisure or fleeing persecution. It is no concern how we blend in but our spacecraft poses an ...
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4answers
146 views

Perfect centrifuge crew quarters for a interstellar spaceship?

I want to design a realistic interstellar spaceship that uses centrifugal force for only the crew quarters. But while looking up for designs I found the most common ones are the torus or ring design. ...
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1answer
93 views

Why don't ejectable fission reactors proliferate if meltdown is still a concern?

Set in the not-so-distant future, interplanetary travels are the norm. Most spaceships are powered by fission reactors, and accidents do happen due to negligence or flaws in the system. It will ...
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34answers
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Believable way to make missiles and drones inferior to analog starfighters?

I realize that in space, battles will take place at ultra long ranges due to sensors and the absense of stealth. This makes missiles and or attack drones (remote controlled or AI controlled) the most ...
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1answer
140 views

Ways to kill off characters on a spacecraft by freezing them to death? [closed]

Looking for ways to kill characters off while in space. The scenario has a group of people trapped in a section of a spaceship either during or just prior to landing on a planet. Particularly, are ...
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3answers
732 views

Why do every future relativistic spaceships have an atomic clock?

Set in the not so distant future nearly all commercial, private and military spaceships capable of fractional speed of light travel would always have a time keeping device powered by radioactive ...
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3answers
209 views

Low gravity space shipyard vs micro gravity shipyard

If you had a device, similar to a Stargate, but that allowed seamless two way transfer, and that could be moved (You could essentially strap a rocket on it, and fuel it from Earth), you could just ...
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6answers
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Is it necessary for spaceships to include reverse thrusters for deceleration in space?

Set in the not so distant future, space travel becomes commonplace but is limited within the heliosphere. I'm thinking since it is fuel efficient and more economical to use gravity assist to slow down ...
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4answers
189 views

Rapid-repeat re-entry vehicles

In my current writing project, I'm working in a universe where mysterious alien beings travel not directly through space, but through planetary atmospheres via wormholes. These aliens shotgunned ...
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18answers
7k views

What measures to put in place to reduce airlock being used for murder?

Consider a futuristic world where space travel and colonisation of the solar system's planets is an everyday reality. In space vessels, the airlocks are used quite often to execute people. It's fairly ...
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2answers
135 views

Formula for send and response times of messages at fraction of light speed?

I have a ship that begins the equation traveling at 50 percent the speed of light, but decelerating constantly to finally land on a certain planet (towards which it is moving the entire time). It ...
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2answers
143 views

Manufacturing a new propulsion method mid journey

I have an interstellar ship going from earth to a nearby star system using current technology and chemical fuel. The ship has been created and is being managed by a self sufficient android. The ...
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1answer
162 views

Message sent to a ship traveling away at 37.5% light speed? [closed]

I have a ship traveling away from Earth at around 37.5 percent of light speed. How long will a message take to reach first Earth, and then a response to reach the ship, both from Earth perspective and ...
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1answer
132 views

Spin gravity on an abandoned ship

If a cylindrical rocket ship with a diameter of about 350 meters were spinning on its long axis, would more than just the interior surface of the outer hull have artificial gravity? The ships decks ...

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