Experts say it will take decades to make Elon Musk’s cosmic vision real.
Morning Overview on MSN
Solar-powered airship stays aloft 12 days at 52,000 ft in test flight
A helium-filled airship built by New Mexico startup Sceye drifted and maneuvered above 52,000 feet for more than 12 consecutive days this spring, traveling roughly 6,400 miles from the American ...
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