Beauty is in the eye of the beholder, and good fiction means different things to different people. Therefore, it's only fair to explain what good science fiction means from the perspective of the contest.

First, science fiction is fiction, with all the elements of fiction. It should have compelling characters, who act and drive events - or witness them. In speculative fiction, the characters may be human beings, animals, robots, civilizations, or entire worlds. Characters provide perspective and connect written events to our own feelings and experiences. Good fiction uses real and expressive characters to connect speculative ideas to us, the readers.

Characters in a story experience change. They do not exit a work as they begin. Sometimes that change is a struggle, and sometimes a moment of beauty. In science fiction, the agents that cause this change are those we experience daily - but also forces too strange or too large for us to encounter in our own lives. Science fiction is speculative fiction, the story of how a new technology or circumstance that is actually possible might play out in our own lives if let in. Sometimes, science fiction incorporates elements of the fantastic, but the best science fiction does not. It does not cheat but tells us what might be possible somewhere, somewhen, that might move us, that we might learn from.

Therefore, in judging a science fiction contest, I am looking for:
1. Expressive and readable writing, with passable grammar.
2. A plot. There should be a progression or conflict that is resolved within the length of the story. Ambiguous or implied resolutions may work but should be considered a risk.
3. Meaningful characters. It is through empathy with groups or individuals that are connected to our ideas, and it's through seeing their effect on people that we best understand them.
4. An interesting speculative premise - time travel, new technology, aliens, new physics, robots, AI, genetic engineering, monsters, etc.
5. An interesting setting
6. Science. In science fiction, it's best if the speculative premise is actually possible, and even better if there is some scientific support for the possibility

That said, many of the stories I've enjoyed the most or learned the most from have been surprises. I've enjoyed the contest entries so far, and am looking forward to great things to come!