Great start, but needed much improvement.
This was pretty fun to play for a while, but there are a few things that you should improve upon...
1) Increase the turning speed and overall movement speed of the ship. Seriously, It was like I was trying to fly it through mud. Having a ship that's easy to manouevre would easily make this game better tenfold.
2) Make the screen bigger! I want to see every tiny bit of pixelated goodness in this virtual space, not have to squint and lean towards the screen!
3) Treat the players to some eye candy. Make the planets and stars and everything else more appealing to look at. Perhaps enlist the help of some of our talented artists from the art portal, I'm sure they'd be glad to help out.
Overall this game has a good premise, but it needs a lot of polishing to make it an experience.