(click to enlarge)
Some useful links for brainstorming your sci-fi setting:
Stars and Planetary Systems in Fiction
List of weapons in Star Trek
The Known Universe (A map of the 'verse starting with Earth and zooming out to infinity!)
The Known Universe video uses data from the Digital Universe Atlas, as maintained by the Hayden Planetarium at the American Museum of Natural History.
Finally, a list of aliens, and another.