When Google announced Project Loon in June of last year many balloon experts were skeptical of its chances. The stated goal was that the balloons that would last 100 days or more in the air, but nobody was routinely getting anywhere near that kind of longevity. Much larger NASA balloons typically stayed in flight for less than 60 days. Google was aiming to nearly double that, and at a much lower cost. "Absolutely impossible—just talk to anybody in the scientific community," veteran balloonist Per Lindstrand told Wired. "Even three weeks is very rare."
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