What environment did both Dirk Frimout and Klaus-Dietrich Flade work in?
Dirk Frimout:  He flew aboard NASA Space Shuttle mision STS-45 as a payload specialist , making him the first Belgian in space . Klaus-Dietrich Flade: Klaus-Dietrich Flade (born August 23, 1952) is a German pilot and former German Aerospace Center astronaut who visited the Mir space station in 1992 aboard the Soyuz TM-14 mission, returning to Earth a week later aboard Soyuz TM-13.
Space