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So the real question is, can a satellite be successfully built that could act as a "billboard" in space? Designed to unfold (2 miles is awfully big)? Built in multiple pieces? What do you think are some of the technical issues surrounding a concept like this?
during the "night" part of the orbit, which will last about 40 minutes for a 250-mile high orbit.
But there is a more fundamental problem - since the invention of TV, almost noone looks up at the sky at night (apart from astronomers, and they will hate this extra source of light pollution!). And very few people look up at the sky during the day, because they don't expect to see anything.
How much info could you transmit if written on the face of a full moon? Especially if traveling from horizon to horizon in a few minutes? One word? A corporate symbol like a yellow "M" or Mercedes Star? Perhaps the image of a hamburger?..........I agree with RD, you would up with an extremely expensive system, with minimal benefit. Consider the International Space Station microscopic tiny compared to what you are wanting to build, and cost $150 Billion dollars.
I agree that people don't regularly look up... but if everyone knew this thing was up there ... I think that in itself would attract regular attention.
However it is worth reviewing the effectiveness of aerial banner towing. Friends who do it point out that unless you are fairly close to the audience with a really noisy aeroplane, nobody bothers to look up.