It doesn't have to do with Star Trek. That's just the name of the Lemmy instance that uploaded it. The community it's uploaded to is [email protected].
The other commenter expained it too: direct image uploads display the instance that they originate from instead of an external site. My account is on "startrek.website", so it shows that in the same place that you might see "lemmy.world" or "kbin.social", or if it were off-site, maybe "cnn.com"
Picard and Staments of the united federation of plants post the most federated memes. I don't know why this makes the most sense to me that I havent bothered to question until now...