Wikimedia Commons

Helios Prototype

NASA developed solar and fuel-cell-system-powered unmanned aerial vehicle
English: Helios Prototype is the name of a UAV that runs entirely on solar energy.
  • The Helios in flight
    The Helios in flight
  • The Helios in flight
    The Helios in flight
  • The Helios Prototype in the air. (video)
  • The Helios in flight over Kauai, Hawaii. (video)
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