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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.

18
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5answers
3k views

How would a physicist explain this starship engine?

In my world, interstellar vessels use a drive whose design mankind learned from an extinct elder civilization. While construction of the drives is possible, the physical principles making them work ...
10
votes
1answer
123 views

Could a form of acoustic levitation be used as artificial gravity?

So I heard about this thing on vsauce a while ago, where scientists use this thing called “acoustic levitation”. They use ultrasonic frequencies to levitate various substances, for use of studying ...
10
votes
6answers
1k views

Could there be something like aerobatic smoke trails in the vacuum of space?

Whether exhaust from a solid rocket engine, or something released by spaceships in flight (like aerobatic smoke in the atmosphere), could extended trails behind a ship be created that would not ...
2
votes
5answers
432 views

How does the atmosphere of this spaceship work if my brain doesn't?

I want to have air and STP (standard temperature and pressure) around my spaceship. Other properties: Objects can enter and exit it without bumping into any kind of a barrier? In fact, there doesn't ...
-1
votes
6answers
186 views

Why wouldn't my nuclear spaceships eject spent fuel?

In the year 2069AD, a spaceship is transporting hundreds of people in cryogenic sleep to a distant star. The spaceship engine is a nuclear fission reactor and its thruster is based on an ion drive for ...
4
votes
9answers
226 views

Nuclear Space Defence!

So I'm going for a pretty realistic setting and I don't like shields, they break the style of realism I'm going for. So for the most part defence is accomplished by dodging (which at the incredible ...
5
votes
3answers
162 views

How to effectively convince a populace living in a dome, that they're experiencing a spaceship landing?

I have a population living in a dome, and they have been for generations, totally sealed off from the outside world. What type of engineering would need to be in place to effectively convince the ...
3
votes
3answers
92 views

Object in the orbit or orbiting Uranus's moon Puck

I realize the response to this question is fairly involved but here goes. I need to have an alien spacecraft either in orbit around Uranus's moon Puck or somewhere in Puck's orbit around the planet if ...
0
votes
1answer
121 views

Is using light as a reactive mass in a rocket engine possible? [closed]

How practical would be a rocket that would use laser light as a reactive mass, given there is a very efficient electric energy source or storage?
13
votes
3answers
1k views

Black holes as heat sinks

Cooling in space is a well known difficulty. There are many unpleasant consequences like no stealth in space, difficult space battles which turn into a short wars of attrition (because you have to ...
14
votes
6answers
349 views

Flight paths in orbit around Ceres?

In my sci-fi world, mankind has begun colonization of the large asteroid Ceres. It's a mining hub, with a lot of cargo vessels transporting things in and out. Hydrogen peroxide fuel is cheap and ...
31
votes
26answers
5k views

Keeping a retro style to sci-fi spaceships?

In my sci-fi world, mankind has begun colonization of the large asteroid Ceres. There are several established towns on the surface, but most of the population live underground in icy/rocky caves. The ...
2
votes
3answers
126 views

What advantages would a “night watch” of Androids have compared to just the ship's onboard systems?

The industrial company Astor since 2124 has equipped all "Long Hauls" (voyages beyond 3 months) with cryopofs in accordance with a new company bylaw and cost cutting measure (less resources the crew ...
3
votes
2answers
214 views

Is it possible to break the sound barrier in space with a really fast spacecraft

I was doing some research online about slower-than-light interstellar spacecraft, and it got me thinking about a couple things. Although it may seem empty, the space between stars isn't a perfect ...
11
votes
5answers
3k views

Could gravitational lensing be used to protect a spaceship from a laser?

Suppose Ship A is being targeted by Ship B, which intends to use a laser weapon in an attempt to destroy Ship A. Ship A has special technology that allows it to alter gravity (mainly used for ...
2
votes
3answers
251 views

A collective noun for a group of spaceships [closed]

A shrewdness of apes, an unkindness of ravens, a murder of crows...I wonder how to call a collection of spaceships often seen in the proximity to my planet that is apparently a fruit of a particular ...
5
votes
6answers
371 views

You are murderous alien pirates, how do you get onboard a victim's spaceship? [closed]

Backstory: One space-faring civilization detects evidence of intelligent/sapient life on another planet. They send emissaries. The people on the planet, a species of intelligent apex predators, ...
5
votes
7answers
164 views

Feasibility or challenges of using stealth “fighters” for weapon control

So, say you have a stealth technology that is really effective. But, the tech is too big to mount on missiles, and anything over a certain size (like a space ship) is too large to hide properly. If ...
5
votes
2answers
190 views

Effects of a supermassive ship crash landing on a planet

My planet is a 20% larger than the earth, assume a similar atmosphere, but it can be changed to fit the narrative. My ship is not so large as in the original question, a cylinder shape, about a ...
2
votes
3answers
116 views

Is spaceship made of precast reinforced concrete tougher than those malleable alloy?

Set in the mid 22nd century AD, a major construction work is being carried out in the orbit of Uranus. The military is developing a cheaper fleets using precast reinforced concrete(PRC) hoping to ...
3
votes
4answers
1k views

How can a long spaceship combat torsion and shear stress while moving in space?

Set in the late 22nd century AD, spaceship designs are becoming more streamlined and have longer bodies measuring from the tip at the front of ship to the thruster located at the back of the ship. ...
1
vote
2answers
47 views

How to protect astronauts and spacecraft from solar flares on long space journey?

Background I have a spacecraft traveling from one planet to another, say from Earth to Venus. The journey will take at the least several weeks. During this time, the sun will emit a number of solar ...
-4
votes
3answers
84 views

How to compromise block chain force shield? [closed]

Set in the distant future, a notorious terrorist group infamously known as "51 Crew" is planning an ambush near the orbit of Thebe, Jovian moon. In the next few hours an armoured shuttle holding a ...
15
votes
7answers
3k views

What kind of footwear is suitable for walking in micro gravity environment?

Set in the near future, the interior of the spaceship is coated with thin layers of Teflon approximately 10mm average thickness on top of titanium alloy which in case you are wondering it is weakly ...
4
votes
2answers
102 views

How does steppenwolf planet generates typhoon?

In a distant future, a spaceship was investigating a gravitational anomaly somewhere within a chartered sector in the Andromeda galaxy. A disaster strikes and the spaceship was found marooned on a ...
8
votes
10answers
431 views

A system for transporting people from a spinning ring up a conduit to a spaceship

I have a spaceship which is basically a cylinder a little less then a kilometer long. Attached to the ship by pylons connected to a hub is an inhabited ring which spins to produce a gravity-like ...
7
votes
10answers
435 views

Military Implications of Instantaneous FTL?

In an example future world, one can use some form of FTL to instantaneously transport any ship from one point to another point (within the same galaxy, to keep things simple). The device required to ...
12
votes
8answers
3k views

How would an energy-based “projectile” blow up a spaceship?

I have noticed this in many fictions: during a battle between spaceships exchanging fire in empty space, a pulse of laser fire hits the hull and the entire spaceship explodes into many pieces. Is ...
53
votes
19answers
11k views

How do spaceships determine each other's mass in space?

Set in the distant future, space travel becomes prominent and cheap. I can imagine each spaceship would have a multitude array of sensors to track distance and relative position in space. Is there a ...
8
votes
4answers
221 views

Microfracture in the ship's structure: good enough excuse to strand my characters? [closed]

I have the idea to have the engineer of a spaceship discover a "microfracture" in the ship's key structural framework (that was overlooked when prior battle damage was fixed) that has been slowly ...
2
votes
4answers
232 views

What use is growing body hair in space?

It is important to tie up loose ends especially when in micro-gravity environment, we sure do not want to accidentally damage the delicate pieces of equipment crucial for keeping the spacers alive and ...
7
votes
6answers
325 views

Spaceship design and modelling tools

I'm not quite sure if this question fits in with worldbuilding but I have honestly no idea where else I would ask it. I've recently stumbled upon a 'ship designer' tool that allows you to build and ...
5
votes
15answers
2k views

Highly technological aliens land nuclear fusion powered ships in medieval city and slaughter everyone, using swords? [closed]

I want to create a scenario where highly technological aliens invade a medieval earth, the kind with magic and dragons and such. But I don't want the aliens to be completely overpowered. I want them ...
5
votes
4answers
1k views

How can a large fleets maintain formation in interstellar space?

Earth is under attack, the empire has gathered thousands of battleships each has a displacement of 500,000 metric tonnes and 20 motherships with a displacement of over 15 million metric tonnes now ...
38
votes
18answers
9k views

Why would space fleets be aligned?

Recently I noticed how space fleets are all constructed so the ships are all aligned. With 'aligned' I mean the way how all ships seem to have a 'right way up' and that all the ships have the same ...
55
votes
14answers
35k views

Why zero tolerance on nudity in space?

Set in the immediate future, mankind visits Titan, moon of Saturn for the first time. A manned space station goes into orbit around the moon once every 4-5 hours. Actually there have been many people ...
9
votes
10answers
1k views

Plausible reason to leave the Solar System? [closed]

According to this article, it would take tens of thousands of years to travel to the nearest star given today's technology. My question is, what could give the countries of today, or most of them at ...
23
votes
19answers
11k views

What is a good reason for every spaceship to carry a weapon on board?

In the near future humanity has started mining on Mars. International (and interplanetary) treaties governing the use of lethal weapons in space dictate that anyone possessing such a weapon must carry ...
5
votes
3answers
602 views

How would an EMP affect spacesuits (and small-arms weapons)?

Since most online and media depictions of EMPs run the gamut from devastating annihilation (complete with sparks shooting from every angle) to gentle shutdowns resulting in inconvenient repairs, what'...
2
votes
1answer
154 views

Limits on EM kinetic weaponry

I am looking for kinetic armament for spaceships. With nuclear reactors providing power, there is plenty of energy for kinetic EM weapons. EM weapons come either as coil guns or as rail guns. What ...
25
votes
16answers
4k views

Discouraging missile alpha strikes

I am looking at tactics for using missiles as space-to-space weapons. The missiles in question will be chemically fueled, higher acceleration but lower deltaV than the warships. Since they are ...
2
votes
2answers
165 views

Can artificial general intelligence live forever? [closed]

Suppose some advanced civilization has created some AGI. AGI, i.e., strong ai, could successfully perform any intellectual task that a human being can and also carry massive knowledge databases. ...
26
votes
11answers
7k views

Everyday tasks on a space ship

There is a space ship, flying from planet to planet for multiple years. It is a science vessel, so, once they reach a planet, they do research. But what do they do if they are in transit between ...
8
votes
2answers
157 views

Is there a good reference for the evolution of ships over the ages?

So in Sci Fi we have this tendency to want to compare ship designations to modern sea faring ships. It dawned on me that this is probably completely wrong. Even though we want to refer to warships as ...
7
votes
4answers
411 views

Would a portal to space enable propulsionless orbital launch

I'm writing a story about a race that has space travel capabilities without rocket technology, instead is using a portal to space and was wondering whether it's possible for them to put something in ...
24
votes
7answers
9k views

Chlorine Trifluoride as a Space Weapon?

Pretty self-explanatory. Could a spaceship use a "ClF3 Mortar" to fire copper shells at enemy vessels? At first glance, this seems like a good weapon: it can burn even in space and can set fire to ...
8
votes
2answers
142 views

Calculating an eccentric enough orbit to allow a dip into atmosphere and escape again

How would I calculate if it is possible to have an eccentric enough orbit around a gas giant to dip the periapsis some depth(how deep?) into the atmosphere of a gas giant like Jupiter or Saturn and ...
6
votes
8answers
309 views

Locking an old spaceship from the outside?

I know it may be a bit of a silly question and not really something of great importance to a story, but how would you secure a spaceship when you leave? For example; when the Millennium Falcon lands ...
8
votes
7answers
455 views

A possible solution to stealth in space

I'm sure most worldbuilders will have heard the aphorism that in space "Everyone sees Everything", or that "There Ain't No Stealth In Space". I'd like to propose a possible solution to this. The ...
3
votes
3answers
235 views

A planet that cannot be orbited [duplicate]

I'm wondering if it is possible for a planet to be impossible to orbit stably over a significant length of time. The shorter the length of time the planet can be orbited for, the better. It should ...