Ok, I'm having a retarded argument with some nerds in a general about "stealth" in space, so let's discuss...
Would it be possible to conceal a spacecraft in space? What would be require to do so? Forget whether or not it's feasibly possible in the modern day, I want to hear arguments for what could be and the issues involved, if any. Granted no one really knows what the future holds, but the theory is interesting.
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I dont expect it to be all that difficult. Much more difficult to find anything that isnt constantly beaming its location to us
it's really easy to conceal a ship in space when it's several million light years away from the planet
Please elaborate.
Let's talk about in closer proximity, though.
Arguments being brought up;
>ship heat generation
>radiation in space
>distinguishing said radiation(s) from each other
There is no stealth in space. The only way you could is by having no EM emission of any kind beyond what should already be there. The two primary ones being infrared and visible; infrared because your ship has a heat signature much greater than space, and visible light because not only can they just see your ship but the disruptions in light from behind your ship.
Build your ship inside a comet.
Build a trillion plastic copies of your ship and hide amongst them.
paint it black
if nothing else works you can always hide it behind an asteroid
NO. There is no stealth in space!
You can have all your radiators directional. You'd lose efficiency, but you could choose from which direction to appear invisible. From optics, after a certain distance you'd need very large telescopes and you could just make it look like a rock. There is too much space out there to look at it all and unless someone knew where to look, it would look like a rock.
There is also all kinds of research right now on metamaterials that promise to deflect radiation on certain frequencies to make it look invisible. The same kind of research unfortunately that promises to make telescopes much more powerful. In the end, it all boils down to the radiators and how well you can direct them to hide yourself, because after a certain distance, heat is the only thing that will give you away.