The NASA clue?

https://www.zerohedge.com/news/2019-03-11/nasa-about-test-solar-powered-drone-broadcasts-5g

SoftBank and AeroVironment are ready to conduct flight tests of its experimental solar-powered drone that can deliver 5G connectivity to anywhere in the world, reported Institute of Electrical and Electronics Engineers (IEEE).

Dubbed Hawk 30, the drone is a curved “flying wing” design. Filings with the Federal Aviation Administration and the Securities and Exchange Commission show the drone has ten electric engines and an operational altitude of over 12 miles.

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