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Summary
DescriptionKepler-452b artist concept.jpg
English: An artist's concept depicting one possible appearance of the planet Kepler-452b, the first near-Earth-size world to be found in the habitable zone of a star that is similar to our sun.
Русский: Созданный художником возможный вид экзопланеты Kepler-452 b
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]