In recent decades, satellites have become increasingly important in the economic, civil, and military spheres. At the same time, space has become more crowded with satellites and the debris from their use, and many more states have become spacefaring. However, the legal and normative regime has not kept pace with these changes. Recent trends and events-including demonstrations of antisatellite (ASAT) capability, a collision between satellites, and a dramatic increase in dangerous space debris-make clear that the space environment needs more protection, that satellites face growing risks, and that space activities may be a potential source of mistrust and tension between countries. While voluntary confidence-building and transparency measures can help solve some of these issues, more substantive engagement is required to keep space safe and secure into the future. KEYWORDS: space security, antisatellite capability, space debris, international security. THE INTERNATIONAL COMMUNITY HAS A VITAL INTEREST IN ENSURING THE security of space. It is in all our interests to keep the space environment usable now and in the future and satellites safe and secure, as well as to enhance stability not only in space but also on the ground. While satellites have enormous potential to contribute to global stability and prosperity, space technology also can engender highly threatening military capabilities. Some argue that warfare in (and from) space follows naturally from war on Earth. How do we manage these strategic issues into the future to preserve the beneficial agency of space? How do we ensure that using space capabilities does not escalate terrestrial conflicts? How do we transition gracefully from the present to a future where many more states have interests and assets in space? These issues are complex, but the need for constructive action to solve them is increasingly urgent. The number of states, as well as companies, with important interests in space continues to grow, as does the number of satellites. Also growing is the amount of dangerous space debris and the technical knowhow to interfere with satellites. As satellites become increasingly valuable, conflicts over space assets and the way they are used become increasingly likely. However, the existing laws and norms relating to the use of space have not kept pace with these changes.As a result, challenges to stability and security are growing, with ever more satellites and few restrictions on behavior, increasing the risks of costly accidents and of misunderstandings that could lead to conflicts on the ground. Humanity's relationship to space changed on October 4, 1957, when the Soviet Union launched Sputnik 1 into orbit. The simple aluminum sphere became the first artificial Earth-orbiting satellite, marking a stunning technical achievement and a spectacular example of the human drive toward knowledge and discovery. The launch was also a significant political achievement, adding a new dimension to the fierce competition between the United States and the Soviet Union. Fifty years later, the once-impossible has become routine: More than forty-five hundred satellites have been launched into orbit, and more than nine hundred of them still operate today. Launching satellites is no longer the exclusive province of national governments- private companies have been doing so since the 1980s. While in the early decades of the space age, the space race played a symbolic role in a fraught bilateral strategic relationship between the United States and the Soviet Union, today satellites are owned by private companies and governments and space-derived services are used worldwide. However, recent trends and events-including the demonstrations of antisatellite (ASAT) capability, a collision between satellites, and a dramatic increase in dangerous space debris-make clear that the space environment needs more protection, that satellites face growing risks, and that space activities may be a potential source of mistrust and tension between countries. …
Read full abstract