Rear view of DSS 51, a 26 metre radio-telescope located at the <a href="//commons.wikimedia.org/w/index.php?title=Hartebeeshoek_Radio_Astronomy_Observatory&amp;action=edit&amp;redlink=1" class="new" title="Hartebeeshoek Radio Astronomy Observatory (page does not exist)">Hartebeeshoek Radio Astronomy Observatory</a>, 65 km north-west of Johannesburg.  The telesscope has seven channels in the 1.3 cm to 18 cm range. It was built in 1961 as part of the <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="en:NASA">NASA</a> Space program and was handed over to the South African <a href="https://en.wikipedia.org/wiki/Council_for_Scientific_and_Industrial_Research" class="extiw" title="en:Council for Scientific and Industrial Research">Council for Scientific and Industrial Research</a> in 1975.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup><div class="reflist" style="list-style-type: decimal;">
<ol class="references"><li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.hartrao.ac.za/factsfile.html">HartRAO 26m Radio Telescope Details</a>. Retrieved on <span class="mw-formatted-date" title="2016-12-02">2 December 2016</span>.</span>
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<a href="//commons.wikimedia.org/wiki/User:Martinvl" title="User:Martinvl">Martinvl</a>
<span class="int-own-work" lang="en">Own work</span>