Okay. Not familiar with any of those species. But I'm going to guess that you're not too familiar with Vulcans, Klingons, or Betazoid.

[He's already getting the different worlds vibe. It fits.]

As for how far we've gotten? Not counting freak accidents carrying us outside of the Milky Way...we've mapped about a quarter of the galaxy by now. We've sent probes into the other three quadrants and had extended contact with the Delta, but our mapping has been limited.

[Thanks to aggression by the Cardassians, mostly.]