Microsensors carried by a small lighter-than-air vehicle used for stealthy surveillance? Maybe minimal propulsion via solar powered electric ducted fan? Should have been at a higher altitude. Too easy to intercept at 40,000 feet. At twice that altitude maybe harder to detect, harder to shoot down. Maybe there are sensor limitations. One wonders. Should be nice weather today and tomorrow and rain chances pick up this week. Could use rain. No snow, sleet, or hail, thank you.
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