The present space exploration technology cause various real problems, such as the privacy issue due to satellite images and allocation of satellite orbit. On the other hand, when we look forward the future of space technology, there are issues that sound like science fiction, but pose questions to the basis of present ethical theory; issues like the ethics of the first contact with extraterrestrial life forms and that of terraforming (remodeling other planets so that human being can live) are the examples. CAPE center proposes space ethics, a new field in ethics that include both types of issues, as one of research agendas. Our research in this field is conducted in cooperation with other research groups in Kyoto University, especially the Unit of Synergetic Studies for Space.