Plaque next to full-size replica of the first radio telescope, built by Karl Jansky and now at <a href="https://en.wikipedia.org/wiki/National_Radio_Astronomy_Observatory" class="extiw" title="w:National Radio Astronomy Observatory">National Radio Astronomy Observatory</a> in <a href="https://en.wikipedia.org/wiki/Green_Bank,_West_Virginia" class="extiw" title="w:Green Bank, West Virginia">Green Bank, West Virginia</a>. Text of the  plaque: "<i>Reconstruction of the directional antenna used in the discovery of Radio emission of extraterrestrial origin by Karl Guthe Jansky at <a href="https://en.wikipedia.org/wiki/Bell_Telephone_Laboratories" class="extiw" title="w:Bell Telephone Laboratories">Bell Telephone Laboratories</a> Holmdel, New Jersy, in 1932. Presented to <a href="https://en.wikipedia.org/wiki/National_Radio_Astronomy_Observatory" class="extiw" title="w:National Radio Astronomy Observatory">National Radio Astronomy Observatory</a> by <a href="https://en.wikipedia.org/wiki/Bell_Telephone_Laboratories" class="extiw" title="w:Bell Telephone Laboratories">Bell Telephone Laboratories</a> 1966</i>".
<a href="//commons.wikimedia.org/wiki/User:Jarekt" title="User:Jarekt">Jarek Tuszyński</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>