P120 ORACLE 120 Tue22 Nov ITV 2000:11   SALYUT BACK TONIGHT  OR TOMORROW It now looks as though the two Russian cosmonauts on board the Salyut space station will attempt to return to Earth tonight or tomorrow. They have tested the engine of their Soyuz ferry craft and reported it to be working perfectly. If they do come down tonight they will land in pitch darkness — just after midnight Moscow time. The mission has been fraught with drama. After a heavy loss of fuel left them drifting in space, fresh supplies had to be sent up. by Space Correspondent Frank Miles