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]
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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مخطط كفاف للإمكانات الفعالة لنظام ثنائي الجسم. (الأرض والقمر هنا) ، تُظهر نقاط لاغرانج الخمس. صورة العمل الأصلية: Lagrange Points.jpg من: http://map.gsfc.nasa.gov/m_mm/ob_techorbit1.html - تم الاسترجاع في 31 مارس 2006. تم التعديل بواسطة Vulpecula