The Outer Space Treaty, formally known as the Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies, is the foundation of international space law. It sets forth the principles of non-appropriation, freedom of exploration, and peaceful use of outer space.

The Outer Space Treaty declares that celestial bodies and their natural resources are the common heritage of mankind, meaning they are not subject to national appropriation or ownership by any state.

UNOOSA, a part of the United Nations Secretariat, is the focal point for international cooperation in space activities. It promotes the peaceful use of outer space, facilitates international cooperation, and disseminates information on space science and technology.

The ITU plays a crucial role in allocating radio frequencies for satellite communications, ensuring efficient and interference-free use of the radio spectrum.

The Convention on International Liability for Damage Caused by Space Objects, also known as the Liability Convention, establishes the liability of states for damages caused by their space objects.

The Agreement on the Rescue of Astronauts, the Return of Astronauts, and the Return of Objects Launched into Outer Space, commonly known as the Rescue Agreement, aims to facilitate international cooperation in rescuing astronauts in distress and returning them safely to Earth.

The Agreement on the Prevention of Harmful Interference with Satellite Transmissions, also known as the Prevention of Harmful Interference Agreement, aims to prevent harmful interference caused by space activities, particularly in the context of satellite communications.

The Agreement Governing the Activities of States on the Moon and Other Celestial Bodies, commonly known as the Moon Agreement, provides a legal framework for the exploration and use of the Moon and other celestial bodies, including resource utilization.

The Treaty on the Prevention of the Placement of Nuclear Weapons or Other Weapons of Mass Destruction in Outer Space, commonly known as the Prevention of an Arms Race in Outer Space Treaty, aims to prevent an arms race in outer space and to ensure that outer space is used exclusively for peaceful purposes.

The Convention on Registration of Objects Launched into Outer Space, commonly known as the Registration Convention, establishes a central registry for space objects, allowing for the identification and tracking of objects in Earth orbit and beyond.

The Guidelines for Space Debris Mitigation, adopted by the United Nations Committee on the Peaceful Uses of Outer Space, provide guidelines for states and international organizations to minimize the creation of space debris and mitigate its risks.

The ISS serves as a symbol of international cooperation in space exploration, bringing together scientists and astronauts from multiple countries to conduct research and experiments in a unique microgravity environment.

The Convention on the Use of Geostationary Orbit Satellites for Direct Broadcast Satellite Services, commonly known as the Geostationary Orbit Convention, regulates the use of GEO for direct broadcast satellite services, ensuring equitable access and preventing harmful interference.

The Space Resources Utilization Act of 2015, enacted by the United States, promotes commercial space exploration and resource utilization by providing a legal framework for U.S. citizens and companies to engage in space mining and other commercial activities in outer space.

The Space Tourism Guidelines, adopted by the United Nations Committee on the Peaceful Uses of Outer Space, provide guidelines for states and international organizations to ensure the safety of space tourists and to minimize the risks associated with space tourism activities.