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]
{{Information |Description={{en|1=diagram of forces on a glider in flight}} |Source=http://www.grc.nasa.gov/WWW/K-12/airplane/glider.html |Author=Glenn Research Center |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> [[Category:Glider