Im on the moon and saved Pey'j then i took the picture and went back down to the main level and Pey'j is gone. It wont let me go back to my ship. Is pey'j ment to be gone? HELP!

My guess is you somehow screwed it up... You're suposed to use those light refracting mirrors to set him free, then go down all those elevator tubes and snap a picture of the dom & alien dude chatting, then head back up to where Peyj is, you should still see him lying there, then leave to go back towards the ship and he should reappear towards the end of that long outside corrador