<i id="mwAQQ"><a href="https://en.wikipedia.org/wiki/Soyuz_11" id="mwAQU" rel="mw:WikiLink" title="Soyuz 11">Soyuz 11</a></i> is launched. The mission ends in disaster when all three cosmonauts, <a href="https://en.wikipedia.org/wiki/Georgy_Dobrovolsky" id="mwAQY" rel="mw:WikiLink" title="Georgy Dobrovolsky">Georgy Dobrovolsky</a>, <a href="https://en.wikipedia.org/wiki/Vladislav_Volkov" id="mwAQc" rel="mw:WikiLink" title="Vladislav Volkov">Vladislav Volkov</a>, and <a href="https://en.wikipedia.org/wiki/Viktor_Patsayev" id="mwAQg" rel="mw:WikiLink" title="Viktor Patsayev">Viktor Patsayev</a> are suffocated by <a href="https://en.wikipedia.org/wiki/Uncontrolled_decompression" id="mwAQk" rel="mw:WikiLink" title="Uncontrolled decompression">uncontrolled decompression</a> of the capsule during <a href="https://en.wikipedia.org/wiki/Atmospheric_entry" id="mwAQo" rel="mw:WikiLink" title="Atmospheric entry">re-entry</a> on 29 June.<sup about="#mwt180" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-33"}}' id="cite_ref-33" rel="dc:references" typeof="mw:Extension/ref"><a href="./June_6#cite_note-33" id="mwAQs" style="counter-reset: mw-Ref 33;"><span class="mw-reflink-text" id="mwAQw">[33]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-33"><cite about="#mwt177" class="citation web cs1" id="CITEREFKendall2018">Kendall, Dan (30 May 2018). <a class="external text" href="https://spacecentre.co.uk/blog-post/the-soyuz-11-disaster/" id="mwBuQ" rel="mw:ExtLink nofollow">"The Soyuz 11 Disaster"</a>. Leicester: National Space Centre<span class="reference-accessdate" id="mwBuU">. Retrieved <span class="nowrap" id="mwBuY">13 January</span> 2021</span>.</cite><span about="#mwt177" class="Z3988" id="mwBuc" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=The+Soyuz+11+Disaster&amp;rft.place=Leicester&amp;rft.pub=National+Space+Centre&amp;rft.date=2018-05-30&amp;rft.aulast=Kendall&amp;rft.aufirst=Dan&amp;rft_id=https%3A%2F%2Fspacecentre.co.uk%2Fblog-post%2Fthe-soyuz-11-disaster%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJune+6"></span></span>