Illustration of the European Space Agencys (ESA) Cluster satellite Salsa breaking apart during atmospheric re-entry. On September 8, 2024, the first of four satellites from the European Space Agencys (ESA) Cluster mission re-entered Earths atmosphere over a remote area of the South Pacific Ocean. This event marks the conclusion of a mission that began 24 years ago, aimed at measuring Earths magnetic environment. As space becomes increasingly crowded with operational satellites and debris, monitoring satellite re-entries is vital for ensuring the safety of people and property on Earth.