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File:Sand under electron microscope.jpg

Sand_under_electron_microscope.jpg ‎(270 × 210 pixels, file size: 16 KB, MIME type: image/jpeg)

Summary

Description Sand under an electron microscope. Magnification 150x.
Date not specified
Source http://mix.msfc.nasa.gov/abstracts.php?p=743
Author NASA
Permission
( Reusing this file)

US government, public domain

Licensing

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