Author: NASA. Photo of Rogallo's flexible wing (Parawing) which was tested by NASA a a steerable parachute to retrieve Gemini space capsules and retrieve used rocket stages. The spars were not self-inflating; but the canopy of single skin gained form when gliding.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]
Author: NASA. Photo of Rogallo's flexible wing (Parawing) which was tested by NASA a a steerable parachute to retrieve Gemini space capsules and retrieve used rocket stages.
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