*Note that 2 and 3 contains the same words. You can just crop "Ad astra per aspera" to give the "Ad astra" as long as the product looks fine.
Logo design of three words:
[login to view URL] (My nickname, no special meaning)
[login to view URL] astra (Latin phrase meaning "to the stars")
[login to view URL] astra per aspera (Extension of 2, Latin phrase meaning "to the stars through difficulties")
For 1: No specific requirements for "terbiume". I was thinking about brush strokes but I am not sure whether the final results will look good. Just make it look cool.
For 2 and 3: Make sure to convey the meaning of the latin phrase "to the stars" in the logo. Give it a neat and beautiful feel.