Very few will notice this, as very few people study and know Latin. In your Aerospace motto "Per audacia ad astra" there is a grammar error.
You probably (or should I say without any doubt? :-P) copied the phrase from the famous "Per aspera ad astra", but you didn't think about the fact that "aspera" is a plural noun, and "audacia" is singular.
So, with the singular, the correct phrase is "Per audaciaM ad astra", as with the preposition "per", you have to use the accusative case, not the ablative.
Very few pointed it out, and I'm doing it again, hoping that you'll correct the phrase. Even if very few will notice this, it's still a bad mistake to see...
Also, if you did want to use audacia as a plural noun, you still made a mistake, as "audacia, ae" is a "singularia tantum", this means that there's only the singular form of the noun, without the plural.
Either way, you're mistaking in your motto, and that's not a good thing to see.
P.S. Studying Latin is boring I know, but sometimes it helps.
-DarthGalm-
[Edited on 07.09.2011 2:08 AM PDT]