CGRO Cartoon with Labels
NASA
2014-03-10 23:08:54
<a rel="nofollow" class="external free" href="http://heasarc.gsfc.nasa.gov/docs/cgro/images/epo/gallery/cgro/cgro_line_labels.jpg">http://heasarc.gsfc.nasa.gov/docs/cgro/images/epo/gallery/cgro/cgro_line_labels.jpg</a>