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Questions tagged [space-warfare]

For questions relating to the physics and tactics surrounding combat outside all planetary atmosphere. This includes ship-to-surface, ship-to-ship, and personal combat (space walking). The tag is appropriate when asking about the consequences of tactics, technology, cheistry, and physics of weapons and defenses.

10
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2answers
163 views

Fortifications capable of withstanding atmosphere-clearing blast

On the Atomic Rockets site, there is a series of handy tables, the first of which is aptly named "The Boom Table", providing examples for a wide range of energy releases (in both Joules and TNT ...
24
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7answers
8k 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 ...
9
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11answers
2k views

Harvesting automated war machines

Let`s say there is a planet on which fully automated machines capable of self replication, once belonging to several factions of highly advanced aliens, now extinct, are waging war against each other. ...
7
votes
5answers
293 views

Shooting down an enemy ship at FTL speeds

In the story I'm currently working on an alien race holds the monopoly on FTL travel. They're using a modified Alcubierre drive system, powered by Negative Mass. Humanity stumbles on a source of ...
1
vote
1answer
108 views

Spaceship combat Similar to pre-airplane naval warfare? [closed]

In most Space operas, space wars involve battleships, fighters, energy shields, missiles , bombs and lasers (and sound in the vacuum of space). This largely mimics how planes and mother ships were ...
9
votes
7answers
2k views

Ways to detect lasers from afar

In my sci-fi universe, spaceship shields are generated by capturing plasma between two electromagnetic fields. Projectiles are evaporated by the heat of the plasma, and charged particles are deflected ...
19
votes
10answers
5k views

Planetary defense in an interstellar society

Let's say that you are some sort of tyrannical dictator of an inhabited world with futuristic technology (ex. railguns, a fully automated labor force, efficient space travel.) You know that within ...
2
votes
5answers
308 views

Can we visually identify a fleet from Earth with modern technology?

Two fleets from opposing factions are approaching each other at sublight speed at the edge of our Solar System. The Earth is in a position to affect the outcome of the battle, (i.e, superweapon, etc.) ...
-2
votes
3answers
139 views

Gravity canceling space gun vs black hole [closed]

Not sure how to say this simpler, so we'll try shorter. We have a big space gun. It makes gravity not be there where it shoots. It shoots at a black hole. Does black hole go boom? And for the ...
24
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10answers
6k views

How much time does Earth need to repel interstellar attack?

Highly inspired by How would we fare against an interstellar RKKV Attack? Lets repeat the setup of the original question: In this hypothetical scenario, in the present day, astronomers detect an ...
14
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5answers
1k views

How would we fare against an interstellar RKKV Attack? [closed]

In this hypothetical scenario, in the present day, astronomers detect an object entering the heliosphere, at a distance of roughly 90AU, from the direction of the Proxima Centauri system. Observations ...
3
votes
2answers
210 views

Spaceship boarding drone

Military spaceship wants to perform a boarding action on another spaceship, while both are performing high G manevuers (about 2G let's say). It's too hard to immobilize the enemy ship, so they won't ...
4
votes
5answers
342 views

Any reasons for crew on space warships? [duplicate]

I was thinking why there would be crew on a space warships when everything can be automated by even basic AI. Without crew you can pull all the gees you want with your torch-drive and no need for ...
-1
votes
2answers
156 views

Advantages reptiles would have over humans in battle? [closed]

So, Von Neumann probe from the galaxy Andromeda is invading the Milky Way, and most species are getting their asses handed to them. A few planets have already come under the invaders control, and the ...
6
votes
3answers
265 views

Hypervelocity projectile damage to spaceships

Next question about kinetic weapons in my universe: We have a coilgun/railgun, it launches a projectile at 30 km/s; if it meets a compartmentalized spacecraft on its path, does the projectile go ...
7
votes
4answers
237 views

Optimal shape for hypervelocity kinetic projectiles from space

In my universe, coilguns/railguns are popular weapon in ship-to-ship combat. But, they also have a place in orbital bombardment, as a ship on low orbit can hit a ground target in few seconds using ...
6
votes
3answers
431 views

Are trireme-like spaceships (spaceships with rams) possible? [duplicate]

This is a fairly simple question, and the heading is pretty self explanatory, but I have a feeling there are a lot of implications to it that I haven't thought of. To be more specific, would it be ...
10
votes
7answers
457 views

What would grand strategy look like in a world with fast interstellar travel and slow interplanetary travel?

The specific situation is the tech in the Battletech universe. The Kearny-Fuchida hyperdrives are jump drives that can travel instantaneously up to thirty light years - being deposited (usually) at ...
30
votes
16answers
7k views

Are nuclear-propelled shotgun slugs viable?

Would a nuclear bomb surrounded by large amounts of separate shotgun-like slugs be a good anti-fleet weapon in space? If yes, how could you counter it? (If there is a better StackExchange for this ...
0
votes
3answers
250 views

What type of weapon makes the most sense for use on a spaceship [duplicate]

Supposing your spaceship was long and narrow, what type of weapon would be most practical on a spaceship made of the materials we make spaceships out of today with scaled hull thickness to equal the ...
6
votes
4answers
235 views

Maximizing Nuclear Detonation Effects against a Lunar Colony

Nuke the Moon! Earth's had it with the Moon colony's insubordination and independence efforts. The situation has escalated to a hot war. The W90 nuclear warhead is nearing the end of development. ...
0
votes
5answers
392 views

Could alcubierre warp drives spell the end of fleet on fleet combat?

In this scenario let's assume that we have the technology, and exotic matter to build one and have the energy to reach the 0.62912863×10^11 GJ (700 kg mass energy equivalent) requirement under Harold ...
33
votes
12answers
7k views

How would one design an undetectable nuke to hit the Moon with?

Colonists have set up a viable, long term lunar colony on the near-side of the moon in the mid-21st century. They are quickly reaching total self-sufficiency and the earth governments who sponsored ...
22
votes
10answers
7k views

How would a lunar colony defend itself against aggression from Earth?

Assume that the with the technology level of the near future a self-sustainable colony has been established on the moon. For some reasons a conflict between this colony and some powerful nations on ...
4
votes
4answers
517 views

How would the US re-conquer a Moon Base?

The year is 2030. The US has set up a moon base with about 2,000 people. The base can theoretically survive indefinitely, growing it's own food and 3d-printing supplies, but in practice it needs ...