Just some ideas for a 2.0 version. Make Rocket stars able to target ships, remove Mine stars, and make different kinds of ships, like Bomber or Carrier. Also, make fighters the main attack units, able to be launched from a Carrier once inside the range of an enemy star. Maybe planets too, i.e., the more planets a star has, the more economy it can produce, and be able to conquer and specialize just individual planets. Just some suggestions.
I had to zoom out to 80% on my monitor to fit the whole thing on the screen! Also, basketballs don't shatter. However, it is good that you discovered Flash. Try a GAME next time. .9/5