In the continuity of my preoccupations around alterity, I have conceived a capsule as a device ready to be sent into space, to meet possible beings from elsewhere. The "Pages Blanches" book n° 11, in its unaltered version, has been encapsulated and welded in stainless, waiting to come into contact with another environment. Only the photographs taken during the welding process testify of the existence of the book in its capsule. "Pages Blanches" thus becomes a double projection medium giving space to the probable beings from elsewhere to discover this object and to appropriate it in their own way. Will they only have the idea of forcing the opening, or will they just observe it or will they perhaps make a ready-made alien version?