Good, But not Great
First of all, I like the idea of the game. It's fun but, repetetive and gets old after awhile. You should perhaps ad in other things to make it more interesting, Like UFOs, different kinds of Meteors, ect.
Some problems with the game are that when you just get VERY close to a meteor without touching it you lose. Another problem is that sometimes the Meteors start out right by you and kill you as you start.
I would also recamend adding sound like Background music, Sound effects when a meteor hits the earth and maybe even a sound for when you make a successful revolution.
You also might want to make it get a little harder as it moves on. I do think having a high scores list is a good idea for this kind of game.
It's a good game but, it could definetly be a lot better.