Now I've sort of got this minds-eye image of what such a place would look like, all dressed up in the amber and dark red hues we're familiar with. Above the entrance, below the welcome sign in Klingonese, resides the only words written in an Earth language: Ad Astra Per Aspera. All the other displays are, in contrast to what outside cultures would expect, impeccably translated from the original Earth documents into clear & concise Klingonese, a show of the dedication by the nerds running the place.Large replicas of Apollo 1, Soyuz 1 & 11, and Challenger dominate the room, with pictures and placards around extolling the honor and glory of the Earthmen who died flying them. Another wall dedicated to the Earthmen like Gagarin, who died honorably training for other spaceflights.
A smaller section to those "near misses," most famously Apollo 13, where Earth warriors fought valiantly to push their vessels in ways the designers hadn't anticipated in order to return safely. Their efforts, though honorable, did not see them die in glory and thus are not as studied amongst Klingon space nerds.
And finally a small kiosk dedicated to the "Lost Cosmonauts," the mysterious stories of Soviet Earthmen who died in the pursuit of glory, only to be erased from history by dishonorable bureaucrats.
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CdrMike, Overwatch Reject
"You know, the world could always use more heroes." - Tracer, Overwatch