This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: narrower picture. The original can be viewed here: Protoplanetary-disk.jpg: . Modifications made by Jan.Kamenicek.
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]
2006-01-30T00:15:02Z Arnomane 576x312 (33793 Bytes) {{Information| |Description = Artist's concept of a protoplanetary disk |Source = NASA; http://origins.jpl.nasa.gov/stars-planets/ra4.html |Date = - |Author = NASA |Permission = NASA material is within the public domain if no
{{Information |Description=Artist's concept of a protoplanetary disk |Source=*File:Protoplanetary-disk.jpg |Date=2010-04-24 15:16 (UTC) |Author=*File:Protoplanetary-disk.jpg: NASA |Permission=see below |other_versions= }} {{RetouchedPicture|n