Soyuz ( Russian : Ð Ð 3\/4 Ñ Ð ; English : Union ) is a spaceship used by RFSA . The forepart of the spacecraft is the orbital module ( Russian : Ð Ñ Ñ Ð 3\/4 Ð Ð 3\/4 Ð Ð 3\/4 Ñ Ñ Ð Ð ( Ð ` Ð ) ; Bytovoi otsek ( BO ) ) also known as Habitation section .