Yes, there's more to the game than launching rockets that blow up before reaching orbit. You can also launch all kinds of ships that blow up before getting to all kinds of places, planets, and moons. Welcome to the forum.
Welcome to the forum, Khofax. I'm not clear what you're saying, but it looks like a suggestion, so your thread has been moved to the Suggestions subforum.
I also found symmetries going so completely bonkers that I could not construct an aircraft in 1.04. It was bad enough to get me past my reluctance to use mods, and I resorted to Claw's stock bug fixes. Works like a charm. (Except I still suck at spaceplanes. )
There are some topics which have been discussed so many times that we've had to rule them off-limits for the sake of keeping forum discussions moving productively. Please review the list, and you'll find that additional worlds is one of them. Sorry, but this thread will be closed now.