SEMINAR   Wednesday, June 11th - h. 15:00 Auditorium B. Touschek    Col. C. J. Precourt (NASA) and Col. R. Vittori (ESA) Status and prospectives of the  manned  space program     Abstract The International Space Station is  likely the  largest collaborative scientific effort in our  history.  It  represents  the  logical step in  manned space exploration, in  preparation to  longer term efforts aiming to human exploration of Mars or  to a return to the Moon. The ISS is a large  laboratory in space, to study long term effects  of microgravity and  space radiation on astronauts as well as  on materials and  on biological samples. It also offers a unique opportunity of operation for large externally attached payloads for the observation of the universe. The status of the ISS assembly is discussed, also in view of the recent loss of the Columbia Shuttle. NASA perspectives on  ISS  and post-ISS   developements  as well as   the role of  EU and Russia  in the future of manned space exploration are discussed. Introduces  Dr. S. Bertolucci, Director of  the Frascati National Laboratories of INFN.