<a href="https://en.wikipedia.org/wiki/Mariner_program" id="mwAQY" rel="mw:WikiLink" title="Mariner program">Mariner program</a>: <a href="https://en.wikipedia.org/wiki/NASA" id="mwAQc" rel="mw:WikiLink" title="NASA">NASA</a> launches the <i id="mwAQg"><a href="https://en.wikipedia.org/wiki/Mariner_10" id="mwAQk" rel="mw:WikiLink" title="Mariner 10">Mariner 10</a></i> toward <a href="https://en.wikipedia.org/wiki/Mercury_(planet)" id="mwAQo" rel="mw:WikiLink" title="Mercury (planet)">Mercury</a>.<sup about="#mwt46" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-7"}}' id="cite_ref-7" rel="dc:references" typeof="mw:Extension/ref"><a href="./November_3#cite_note-7" id="mwAQs" style="counter-reset: mw-Ref 7;"><span class="mw-reflink-text" id="mwAQw">[7]</span></a></sup> On March 29, 1974, it becomes the first <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Space_probe" id="mwAQ0" rel="mw:WikiLink" title="Space probe">space probe</a> to reach that planet.<sup about="#mwt50" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-8"}}' id="cite_ref-8" rel="dc:references" typeof="mw:Extension/ref"><a href="./November_3#cite_note-8" id="mwAQ4" style="counter-reset: mw-Ref 8;"><span class="mw-reflink-text" id="mwAQ8">[8]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-7"><cite about="#mwt43" class="citation web cs1" id="mwCAg"><a class="external text" href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=1973-085A" id="mwCAk" rel="mw:ExtLink nofollow">"Mariner 10 Launch and Trajectory Information"</a>. <i id="mwCAo">NASA Space Science Data Coordinated Archive</i><span class="reference-accessdate" id="mwCAs">. Retrieved <span class="nowrap" id="mwCAw">November 2,</span> 2019</span>.</cite><span about="#mwt43" class="Z3988" id="mwCA0" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=NASA+Space+Science+Data+Coordinated+Archive&amp;rft.atitle=Mariner+10+Launch+and+Trajectory+Information&amp;rft_id=https%3A%2F%2Fnssdc.gsfc.nasa.gov%2Fnmc%2Fspacecraft%2FdisplayTrajectory.action%3Fid%3D1973-085A&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ANovember+3"></span></span>