English: Columbia Space Shuttle astronauts Commander Thomas K. Mattingly, foreground, and Pilot Henry W. Hartsfield salute President Ronald Reagan and his wife, Nancy, as the astronauts begin the customary walk-around inspection of the orbiter after landing at Edwards Air Force Base, California. Mattingly and Hartsfield were the first to land the Shuttle on a concrete runway. The landing proved that the shuttle could return safely to a precisely targeted location on Earth.
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.
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