Thanks for all the new Congrats!
@Jivilov: I had the same experience like you and your friend in my early games: I was just running into either a loss or a Space Race or a Time/Score victory because I didn't know how to play properly. However, I believe that only works on the lower levels because the game just lets you win if you play long enough. On the higher difficulties you simply lose.
The second long phase of the game - after my three wars - wasn't boring at all. There are so many things you can improve and think about to get faster to your space ship:
Of course that makes the game lasting a lot longer and is perhaps not enjoyable for everyone but playing a Space Race this way is very different and much more fun and satisfying than a Space Race as the last resort.