Well there is Oxygene by Jean Michel Jarre from 1976 for a start.
Not far behind in 1977 came Magic Fly by Space.
While the former is an ambiant type concept album, Magic Fly's tracks can be taken seperately and are more of a European disco type.
What both share is they are top class examples of early electronic music.
My copy was remastered in 2007 and I particularly enjoy the title track, Fasten Seat Belt, Ballad For Space Lovers, Tango In Space and Flying Nightmare.
There are 7 bonus tracks which just turn out to be the whole of their third album, Just Blue, from a couple of years later.
My choice of tracks are the title track, Secret Dreams, Symphony (which is partly vocal)and Blue Tears.
The other vocal tracks are in the Donna Summer/Georgio Morroder style.
The cover shows the band in space suits and they are certainly having fun making this outstanding recording, I recommend it very highly.