Is it possible to store data in charged molecules? If so, how? If not, why not?
closed as too broad by jippie, placeholder, Nick Alexeev♦, PeterJ, RedGrittyBrick Sep 10 '13 at 8:09
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Store data as light. Light travels at approximately 1 foot per nanosecond. On the moon is a retro-reflector, basically a fancy mirror that reflects light back in almost exactly the same direction that it came from. Round trip to the moon and back is 2,522,784,000 feet. If you could send data at 1 Gbps then you could store 2,522,784,000 bits worth of information in the "air". That's about 300 megabytes.
Of course the other question is: is it at all practical? No. Not at all. Making the machine to do this is very difficult, and expensive, and it would "replace" a $5 Thumb Drive.
There have been similar machines, however, that used coils of fiber optics instead of sending a laser to the moon. While they were easier to make, they were much less useful.