現代科技日新月異，人類的太空活動也展現迥異於以往的面貌。太空科技不僅延伸到宇宙，另一方面也深入地表影響人類生活，諸如衛星傳送、新創產業、軍事技術等。連結虛擬和現實的宇宙空間，現行國際法必須處理嶄新議題的太空垃圾、太空國際法制化、太空資產保護等。同時間，從太空發射的低軌衛星訊息傳送、氣象觀測、衛星遙測等，也與一國內的太空法規範息息相關。這些都挑戰目前主權國家在國際社會的行為，以及在國內制定太空政策的想像。本文取日本太空發展之例，從公共財理論的概念分析太空集體財和私有財的內涵。發現由於太空的..

Modern technology is advancing with each passing day, and human space activities are also showing a completely different appearance from the past. Aerospace technology not only extends to the universe, but also profoundly affects human daily life, such as satellite transmission, emerging industries, and military technology. In order to regulate these human activities in space, the current international law must deal with new issues such as space junk, international legalization of space, and protection of space assets. At the same time, low..