Image:Sand under electron microscope.jpg

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Summary

Description

Sand under an electron microscope.
Source

http://exploration.nasa.gov/articles/06dec_dunes.html
Date

not specified
Author

NASA
Permission

US government, public domain

Licensing

Public domain This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". ( NASA copyright policy page or JPL Image Use Policy).

Warnings:

  • Use of NASA logos (which include the current "meatball" logo, the old "worm" logo, and the seal) is restricted.
  • The NASA website hosts a large number of images from the Soviet/ Russian space agency, and other non-American space agencies. These are not in the public domain.
  • Materials from the Hubble Space Telescope may be copyrighted if they do not explicitly come from the STScI.
  • All materials created by the SOHO probe are copyrighted and require permission for commercial non-educational use.
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The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
  • Sand
  • Wikipedia:Damn it, Jim, I'm a Bad Joke, not Other Deleted Nonsense
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