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.

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This image is a derivative work of the following images:

• File:Protoplanetary-disk.jpg licensed with PD-USGov-NASA
  • 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

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