Yoko Tsuno and Blake&Mortimer were amazing sci-fi for a kid like me. Definitely big imagination-boosters.
So much text, more like an illustrated book :)
Btw, did you know that Jacobs helped Hergé redrawing the backgrounds of some of the Tintin comics after the war? And Leloup (Yoko Tsuno) also worked for Hergé before starting his own series. There is an interview with him on youtube.
Speaking of walls of text, remember the explanation of the inner workings of an atomic reactor in Destination Moon? That's how 5 y.o. me discovered nuclear physics :]