Spacecraft cemetery

The spacecraft cemetery is a special area in the South Pacific Ocean where old spacecraft are brought down when they are no longer useful. This place is far from any land and is called the Point Nemo, the spot on Earth farthest from shore. It is used because it is safe and away from people and animals.

Many important spacecraft have ended their journey here, including the old space station Mir and several others like the Salyut stations. Big cargo ships that help keep the International Space Station supplied, such as the Russian Progress ships, also fall back into this area when their work is done.

Today, people are thinking carefully about how this practice affects the ocean and sea life. There are some rules from international agreements, like the Outer Space Treaty and the United Nations Convention on the Law of the Sea, that help guide what can be done. Scientists are looking for new ways to deal with old spacecraft to keep space and Earth safe for future exploration.

Purpose

Earth's spacecraft cemetery is a special area in the ocean where old spacecraft are brought when they can no longer work. This happens when the spacecraft are too tired, run out of fuel, or have other issues. Big spacecraft that are too heavy to burn up completely when coming back into Earth's air are directed to crash in this remote ocean spot, far away from people. This helps keep towns and cities safe.

This area of the ocean holds around many different spacecraft. Many countries, such as China and Russia, have used this spot for their old spacecraft. In the future, the International Space Station is also planned to be brought down in this safe location when it reaches the end of its life.

Location

The spacecraft cemetery is in a remote part of the southern Pacific Ocean, called the South Pacific Ocean Uninhabited Area. This spot is far from any land. The nearest islands are over 2,600 kilometres away. It is centered around a place called Point Nemo, the farthest point on Earth from any land. This distant location helps keep people safe from falling spacecraft pieces.

Laws

The place where old spacecraft are brought down is far from any country, so there are not many rules. Some international agreements try to help, but they do not clearly say which country is responsible if something goes wrong.

The Outer Space Treaty, made by the United Nations, says that countries must fix any problems their spacecraft cause to other countries, including problems in the ocean. However, space debris in the ocean is often not dealt with.

The United Nations Convention on the Law of the Sea also says that all countries should protect the ocean from pollution, even far from land. But this only matters if the space debris is harming the ocean.

Environmental impacts

When old spacecraft fall back to Earth, some harmful chemicals can spill into the ocean and hurt sea life. One such chemical is hydrazine, a toxic rocket fuel that might survive the trip through the atmosphere.

There are rules and agreements between countries to help protect the ocean from this kind of pollution. The United Nations has a treaty about keeping the seas clean, and organizations like the EPA give advice on how to handle space debris safely. However, it can be hard to know exactly how much harmful material remains after a spacecraft re-enters the atmosphere, making it tricky to measure the risks.

Space debris disposal

Space debris is any human-made object orbiting Earth that is no longer useful. Many pieces of space debris float around our planet, and this can be dangerous for space missions.

One way to deal with this problem is by sending old spacecraft to a special area in the ocean called the spacecraft cemetery. When spacecraft come back to Earth this way, they usually burn up in the atmosphere because they are moving very fast and get very hot. Scientists are working on new ways to clean up space debris, such as using nets and special arms to collect it.