<a href="https://en.wikipedia.org/wiki/Apollo_9" id="mwxA" rel="mw:WikiLink" title="Apollo 9">Apollo 9</a> returns safely to <a href="https://en.wikipedia.org/wiki/Earth" id="mwxQ" rel="mw:WikiLink" title="Earth">Earth</a> after testing the <a href="https://en.wikipedia.org/wiki/Apollo_Lunar_Module" id="mwxg" rel="mw:WikiLink" title="Apollo Lunar Module">Lunar Module</a>.<sup about="#mwt122" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-23"}}' id="cite_ref-23" rel="dc:references" typeof="mw:Extension/ref"><a href="./March_13#cite_note-23" id="mwxw" style="counter-reset: mw-Ref 23;"><span class="mw-reflink-text" id="mwyA">[23]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-23"><cite about="#mwt119" class="citation web cs1" id="CITEREFMansfield2018">Mansfield, Cheryl L. (9 January 2018). <a class="external text" href="https://www.nasa.gov/mission_pages/apollo/missions/apollo9.html" id="mwB_E" rel="mw:ExtLink nofollow">"Apollo 9"</a>. <i id="mwB_I">NASA</i>. <a class="external text" href="https://web.archive.org/web/20191217201729/https://www.nasa.gov/mission_pages/apollo/missions/apollo9.html" id="mwB_M" rel="mw:ExtLink nofollow">Archived</a> from the original on 17 December 2019<span class="reference-accessdate" id="mwB_Q">. Retrieved <span class="nowrap" id="mwB_U">22 February</span> 2020</span>.</cite><span about="#mwt119" class="Z3988" id="mwB_Y" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=NASA&amp;rft.atitle=Apollo+9&amp;rft.date=2018-01-09&amp;rft.aulast=Mansfield&amp;rft.aufirst=Cheryl+L.&amp;rft_id=https%3A%2F%2Fwww.nasa.gov%2Fmission_pages%2Fapollo%2Fmissions%2Fapollo9.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMarch+13"></span></span>