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73

Using WMD against Earth will cause entire Earth to unite and demand revenge. Instead, I propose the same way that US gained its independence (while still requiring supplies from the old world): find a sponsor nation in the old word. Specifically, US was relying on France, which wanted to weaken Britain. Your colony could find a nation on Earth that is ...


51

The same way the American Revolution and the Vietnam War were won. Just make it too costly to fight for the occupiers. Rebels don't need to win, just not lose. So stick to small-scale hit-and-run attacks on occupation forces. Assassinate occupation officials, vandalize the Earth-Mars Public Relations Offices (read: propaganda centers), ambush patrols, ...


50

You have two choices here. Use mechanisms like wormholes that provide a "shortcut" through space. Wormholes, or wormhole-bearing things are sent out in a screen ahead of you, and can watch the enemy ship and relay signals back to you through the wormhole, thus avoiding the lightspeed lag. This does not need to violate causality or require FTL travel or ...


28

Based on the information you provided, I will assume that the beam is straight (so it travels along the straight line connecting the two ships in three-dimensional space) and unguided (so once fired, its vector cannot change, even if the ship of origin moves out of position) If those facts are true, and you know your enemy has this weapon, there are actions ...


15

Strike. On Earth, employeers can send in strikebreaking scabs to work the mine or thugs to beat up the strikers. Governments can replace the strikers outright like Reagan did with the air traffic controllers. Despite this, worker's strikes have been pretty effective at winning concessions for workers. Martian workers have big advantages when it comes to ...


9

This is fairly easy to dodge or avoid. Ship A fires a deathbeam on Ship B. Let's assume the best-case scenario for Ship A: Weapon takes 0 seconds to warm up or recharge. Fired deathbeam targeting is sufficiently precise, with negligible error at the target range. If the beam is desired to hit an arbitrary point in space, that hopefully contains a ship, ...


8

Just wait it out. Mars is not a particularly good target for mining; it is at the bottom of a fairly deep gravity well, after all. Not as deep as Earth's, but still very inconvenient. If mining offworld resources is important, the coporate and national interests who control the mining operations will eventually turn outwards to the asteroid belt. Much more ...


6

Ship A is about to pump out an incredible amount of energy in the form of it's death beam. It first needs to generate that energy, unless it can do so instantaneously which needs much bigger handwavium than the actual death beam. So Ship A brings extra reactors & capacitors on line, and as they start to produce and pool energy, some of that extra ...


6

Surface gravity of a neutron star is in excess of 1011 Earth-gravities. What sort of mechanism are you proposing that can lift up bulk quantities of matter from that sort of gravitational field? Teleporters? If you can teleport, you can almost certainly produce much more interesting and sophisticated things than mere "nuclear weapons". The nuclear pasta isn'...


5

How can Ship B, detect the incoming deathbeam, to dodge it in time It doesn't have to. Before Ship A can shoot at Ship B, it must at least be aware of Ship B's presence. And that's not all it needs to know. At 1 AU, even the slightest error in aiming could make Ship A's shot miss by hundreds of kilometers. Therefore, Ship A requires extremely precise ...


5

The earthians only have to withold its supplies to defeat the martians. Earth can wait a while on the raw materials, but the Martians will suffer and potentially die if they dont get the necessary goods. So the solution isnt to fight them but to use diplomatic relations. You mention two options yourself. Throwing an asteroid is likely going to fail. The ...


5

Lots of different strategies have already been proposed. But for the sheer warfare aspect, it really is very simple: They sit at the better position in the gravity well. The Delta-V need to shoot something from Mars to Earth is much less than the Delta-V you need to shoot something from Earth to Mars. Not only is Earth gravity higher, you also need to ...


5

NO First, gas giants are many times heavier than terrestrial (rocky) planets. The lightest gas giant in our solar system, Uranus, weighs in on 14.536 Earth masses (Neptune is smaller, but a bit heavier). Even if all the asteroids in the Asteroid Belt (total mass 3% of the mass of the Moon) and all the objects in the Kuiper Belt (total mass ~ 1/25 to 1/10 ...


4

Random Walk Avoidance The beam moves at the speed of light and nothing moves faster (without handwavium). There is no way to dodge because there is no way to detect the firing before it hits you. Others talk about using quantum entanglement but physicists theorize that it also moves at the speed of light so doesn't bypass the speed of light limits. What ...


4

Yes, it's possible. As the comments have mentioned, this not only exists in our solar system, it even happens right here on Earth near the north and south poles. For the sake of completeness, I will enumerate varying reasons for this phenomenon: Axial tilt - causes one side of a planet to face the sun while the other side stays in darkness. The amount and ...


4

Setting aside the issue of what exactly Nuclear Pasta is, and if it would still be useful after removing it from the star (I don't know, so I won't tackle it)… No hard-science fiction technology I can think of would allow anything we could build to survive on the surface of a neutron star. The gravitational field on a neutron star's surface is about 200 ...


4

I’ll help you understand what it means to be 1,000 ly away. First, it won’t be possible, in any way, to beam a radio signal to the planet, or to see it: the planet is rogue, that means you don’t know where it is. And that means you don’t know where to aim your radio beam. Also, even if you were able to see where it is, you are seeing where it was 1,000 ...


4

You can't on your own. Most independences on Earth happened because the colonial overlord exhausted itself fighting large-scale warfare against other great powers. -Latin America: Spain and Portugal were defeated by Napoleon. -USA: Just after the 7 years war. -India: India is free not because of Ghandi but because of the Kaiser and Hitler. -Indichina ...


3

In order for this to work you'd need something more than 'photographs'. The problem you're describing is basically the same 'solve for x' trig problem that we all did ad nauseum in school. Position relative to another object is always measured in three values, and if you know any two of them you can solve for the third. In this case, the two values that ...


3

Posting the correct comment by Gryphon as an answer: Heat them up All elements have a temperature and pressure at which they will become a gas. This table covers the boiling points of all elements on the periodic table. If you want some sort of gas-equivalent at standard temperature and pressure, that's an entirely different question, and one you should ...


3

You avoid getting creamed by the death laser by giving the guy who has the death laser something more important to worry about. Fire off some homing missiles that can detect the enemy and chase him, following a randomized path so that they're harder to hit.


3

As I see it you have 3 issues here: Gravity. Normally sodium circulation would occur because of a temperature/density gradient which facilitates convection to carry it through the heat-exchange cycle. In minimal gravity the circulation would be crippled without a pump, both for the core->sodium heat exchange (spinning the sodium to create a centrifugal ...


3

Complete rewrite In general, one-size-fits-all approach is not good. Instead, same basic vehicles will be customized for a given environment, just like RL tanks and airplanes are customized for terrain where they operate (heating and no-freeze lubricants for Arctic, AC and dust control for Iraq). First, you need to keep the crew supplied with air. So air-...


3

Consider a moon that orbits a planet above its equator. As an orbit's altitude increases, its period increases. That is, it takes longer to make one full orbit. If the moon is always above the equator, then it experiences a solar eclipse once every orbit. Given the right size of planet, at the right distance from its star(s), you could get those eclipses ...


3

It is possible that more energetic wavelengths of light are slightly slower. The speed of light in a medium of course depends on wavelength. In a vacuum light is supposed to move at the same rate regardless of wavelength. But there is a theory that space itself is a medium of sorts, which slows photons in proportion to their energy. https://www.ucdavis....


3

The true answer will depend on the mechanics of firing the deathbeam: How long does it take to fire the weapon? How precisely does it require to be targeted? How does the beam work (Does it physically destroy the entire target through e.g. heating target material, neutron beam that will destroy life forms but not the structure of the ship)? What I'm asking ...


3

This answer is quite simple: learn from the French France held a solid colonial empire until not so long ago. Then WWII happened. In 1940, France surrendered to Germany. History books gladly tell the tale of Charles de Gaulle going to England to fight the good fight. These books are light on the fate of the colonies. Here are two cautionary tales. TL;DR: ...


3

If the Martian rebels are stuck on the surface of Mars, things are much harder for them. As other answers have noted, you're really only left with mass civil disobedience or terrorism as solutions. Not that these are necessarily a bad option - civil disobedience by Gandhi's supporters was the foundation of India, and terrorism by the Irgun was the ...


3

Space Docks. The martian got the lion's share of them. Building starships is really sensitive to solar radiation and operating on the dark side of the planet is nonviable for safety. Thus we build on Mars. The martians are the prime shipbuilders who in turn can remotely access all the ships made in they space docks using maintenance protocols. Overrides ...


2

The mother giving the explanation of the FTL travel is either not a scientist or even if she was her explanation isn't intended to be fully scientific. Certain parts of it can be taken with a grain of salt, or even plain discounted and ignored. The key concept is the continuous process of "digging holes" in space (forget dark matter; it sounds wrong, though ...


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