Mission Operations Directorate (MOD) emblem
<ul><li><b>RES GESTA PER EXCELLENTIAM</b> means <b>Achieve through Excellence</b></li>
<li>below are the symbols for NASA's human spaceflight programs: <a href="https://en.wikipedia.org/wiki/Project_Mercury" class="extiw" title="w:Project Mercury">Project Mercury</a>, <a href="https://en.wikipedia.org/wiki/Project_Gemini" class="extiw" title="w:Project Gemini">Project Gemini</a>, <a href="https://en.wikipedia.org/wiki/Apollo_program" class="extiw" title="w:Apollo program">Apollo program</a>, <a href="https://en.wikipedia.org/wiki/Skylab" class="extiw" title="w:Skylab">Skylab</a>, <a href="https://en.wikipedia.org/wiki/Space_Shuttle_program" class="extiw" title="w:Space Shuttle program">Space Shuttle program</a> and the <a href="https://en.wikipedia.org/wiki/International_Space_Station_program" class="extiw" title="w:International Space Station program">International Space Station program</a></li></ul>
<a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="w:NASA">NASA</a>/<a href="https://en.wikipedia.org/wiki/Robert_McCall_(artist)" class="extiw" title="w:Robert McCall (artist)">Robert T. McCall</a>/<a href="https://en.wikipedia.org/wiki/Michael_Okuda" class="extiw" title="w:Michael Okuda">Mike Okuda</a>
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