The Liability Convention, also known as the Convention on International Liability for Damage Caused by Space Objects, is the primary international treaty that governs liability for space activities.

According to the Liability Convention, the launching state is absolutely liable for damage caused by a space object, regardless of fault.

The Liability Convention defines 'damage' as any loss of life, personal injury, or property damage, as well as any loss of or damage to the environment, caused by a space object.

The Liability Convention provides three defenses to a launching state: force majeure, act of God, and contributory negligence.

The maximum amount of liability for damage caused by a space object under the Liability Convention is 400 million SDRs (Special Drawing Rights).

The Registration Convention, also known as the Convention on Registration of Objects Launched into Outer Space, is the primary international treaty that governs the registration of space objects.

The purpose of registering a space object is to identify the launching state, track the space object's orbit, and facilitate communication with the space object.

The Rescue Agreement, also known as the Agreement on the Rescue of Astronauts, the Return of Astronauts, and the Return of Objects Launched into Outer Space, is the primary international treaty that governs the rescue of astronauts and space objects in distress.

Under the Rescue Agreement, states are obligated to provide assistance to astronauts and space objects in distress, return astronauts and space objects to their home state, and cooperate with other states in rescue operations.

The Dispute Settlement Agreement, also known as the Agreement Relating to the Settlement of Disputes Relating to the Interpretation or Application of the Convention on International Liability for Damage Caused by Space Objects, is the primary international treaty that governs the settlement of disputes arising from space activities.

The Dispute Settlement Agreement provides for three methods of dispute settlement: negotiation, conciliation, and arbitration.

The Nuclear Power Sources Agreement, also known as the Agreement on the Prevention of the Placement of Nuclear Weapons and Other Weapons of Mass Destruction in Orbit Around the Earth, is the primary international treaty that governs the use of nuclear power sources in outer space.

Under the Nuclear Power Sources Agreement, states are obligated to not place nuclear weapons or other weapons of mass destruction in orbit around the Earth, not install nuclear power sources on celestial bodies, and take all necessary steps to prevent the accidental or deliberate release of radioactive materials into outer space.

The Moon Agreement, also known as the Agreement Governing the Activities of States on the Moon and Other Celestial Bodies, is the primary international treaty that governs the exploration and use of the Moon and other celestial bodies.

The principles governing the exploration and use of the Moon and other celestial bodies under the Moon Agreement include the principle of non-appropriation, the principle of equal access, and the principle of peaceful use.