<?xml version="1.0" encoding="UTF-8" standalone="yes"?><oembed><version><![CDATA[1.0]]></version><provider_name><![CDATA[Ano Internacional da Astronomia | 2009]]></provider_name><provider_url><![CDATA[https://aia2009.wordpress.com]]></provider_url><author_name><![CDATA[aia2009]]></author_name><author_url><![CDATA[https://aia2009.wordpress.com/author/aia2009/]]></author_url><title><![CDATA[O mistério do desaparecimento da&nbsp;LUNA-23!]]></title><type><![CDATA[link]]></type><html><![CDATA[<p>Imagens recentes da sonda lunar norte-americana <em>Lunar Reconnaissance Orbiter</em> (LRO) permitiram esclarecer um mistério com mais de 40 anos sobre o que teria acontecido à sonda lunar soviética Luna-23.</p>
<p><a href="https://aia2009.files.wordpress.com/2012/04/luna15.jpg" target="_blank"><img data-attachment-id="1904" data-permalink="https://aia2009.wordpress.com/2012/04/06/o-misterio-do-desaparecimento-da-luna-23/luna15/" data-orig-file="https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=271&#038;h=244" data-orig-size="387,348" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}" data-image-title="luna15" data-image-description="" data-medium-file="https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=271&#038;h=244?w=300" data-large-file="https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=271&#038;h=244?w=387" class="alignleft  wp-image-1904" title="luna15" src="https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=271&#038;h=244" alt="" width="271" height="244" srcset="https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=271&amp;h=244 271w, https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=150&amp;h=135 150w, https://aia2009.files.wordpress.com/2012/04/luna15.jpg?w=300&amp;h=270 300w, https://aia2009.files.wordpress.com/2012/04/luna15.jpg 387w" sizes="(max-width: 271px) 100vw, 271px" /></a>A Luna-23, que pesava 5,302 kg, foi lançada às 14h30/14h32 UTC no dia 28 de Outubro de 1974 por um foguetão Proton-K/D a partir da Plataforma de Lançamento PU-24 do Complexo de Lançamento LC81 do Cosmódromo de Baikonur. A sua missão era a de recolher amostras da superfície lunar no Mare Crisium e trazê-las de volta para a Terra. No entanto, um problema então desconhecido levou à perda de contacto com a sonda três dias após a alunagem e sem esta ter conseguido realizar as suas tarefas na superfície da Lua. Esta missão só viria a ser concretizada pela Luna-24 em 1976.</p>
<p><a href="https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg" target="_blank"><img data-attachment-id="1903" data-permalink="https://aia2009.wordpress.com/2012/04/06/o-misterio-do-desaparecimento-da-luna-23/luna-23-resized-on-moon-toppled1/" data-orig-file="https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=278&#038;h=191" data-orig-size="498,343" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}" data-image-title="LUNA-23-RESIZED-ON-MOON-TOPPLED1" data-image-description="" data-medium-file="https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=278&#038;h=191?w=300" data-large-file="https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=278&#038;h=191?w=498" class="alignleft  wp-image-1903" title="LUNA-23-RESIZED-ON-MOON-TOPPLED1" src="https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=278&#038;h=191" alt="" width="278" height="191" srcset="https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=278&amp;h=191 278w, https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=150&amp;h=103 150w, https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg?w=300&amp;h=207 300w, https://aia2009.files.wordpress.com/2012/04/luna-23-resized-on-moon-toppled1.jpg 498w" sizes="(max-width: 278px) 100vw, 278px" /></a>As imagens agora obtidas pela LRO mostram que a Luna-23 terá tombado sobre um dos seus lados, impedindo assim a finalização com sucesso da sua missão. Na imagem é visível o módulo de regresso à Terra ainda no topo da sonda. Outras imagens mostram também a sonda Luna-24 que lançada a 9 de Agosto de 1976 iria alunar a cerca de 2 km da Luna-23 e realizar a sua missão,colocando também um ponto final no programa de exploração lunar não tripulado da União Soviética.</p>
<p>Imagem: NASA/Goddard/Arizona State University</p>
<p>Ver mais sobre o programa soviético LUNA em: <a href="http://www.friends-partners.org/partners/mwade/project/luna.htm" target="_blank">http://www.friends-partners.org/partners/mwade/project/luna.htm</a></p>
]]></html><thumbnail_url><![CDATA[https://aia2009.files.wordpress.com/2012/04/luna15.jpg?fit=440%2C330]]></thumbnail_url><thumbnail_width><![CDATA[367]]></thumbnail_width><thumbnail_height><![CDATA[330]]></thumbnail_height></oembed>