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Originally Posted by h0ughy
Well it got me thinking becasue of a few of sidonio's and few other shots i did and have seen where dust is revealed in the images - got me to thinking how does it build up over time when travelling through it how much would be there and how would it affect your visability?
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Over time the dust either winds up so dispersed we can't see it, or gravity draws it in to form new solar systems. That's where we come from - Sol is at least a 2nd generation star, otherwise we wouldn't have any heavy elements.
As for the traveling through it part of the question, Earth accumulates from space dust all the time - I seem to remember numbers like 30,000 tonnes per year. It eventually precipitates out. Space travelers should expect their windows and camera lenses to get abraded over time. They'll need to take lens makers to polish the glass.