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]
This is not actually resized from the NASA original, as far as I can tell. Thus, I'm not exactly sure why it said "scaled to 50%", and the reason for the current name. Superm401 - Talk 00:55, 14 January 2008 (UTC)
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
2003-12-18 02:25 Ke4roh 270×210×8 (16960 bytes) Cropped, scaled to 50% and color balanced from http://images.jsc.nasa.gov/iams/images/pao/STS51L/10062308.jpg