![](https://images-assets.nasa.gov/image/EC99-45140-11/EC99-45140-11~large.jpg?w=1485&h=1920&fit=clip&crop=faces%2Cfocalpoint)
EC99-45140-11
Closeup of the Helios Prototype, the latest and largest example of a slow-flying ultralight flying wing designed for high-altitude, long-duration Earth science or telecommunications relay missions.
Image Credit: NASA/Tom Tschida
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https://www.nasa.gov/image-detail/amf-ec99-45140-11/
TakenAugust 18, 1999
ProducerAFRC
Image CreditNASA/Tom Tschida
Size1485x1920px
PIA NumberEC99-45140-11