Ensuring the Safety of Satellite Re-Entry to Earth

A pioneering European satellite, ERS-2, is set to make an uncontrolled fiery descent into the Earth’s atmosphere after being in space since 1995. While most of the two-tonne satellite is expected to burn up upon re-entry, some more robust parts may survive. However, the chances of these fragments causing damage to populated areas are slim, as most of the Earth’s surface is covered by ocean. It’s worth noting that the elements re-entering the atmosphere are not radioactive or toxic, according to Mirko Albani from the European Space Agency (Esa). ERS-2, along with ERS-1, were instrumental in tracking changes on the land, oceans, and in the air. They monitored various phenomena such as floods, temperatures, ice movements, earthquakes, and ozone layer assessments. With the increase in space debris due to a large number of satellites being launched, including ERS-2, companies like SpaceX are taking measures to bring down redundant satellites before they pose a threat. It’s crucial for the future to adhere to strict space debris mitigation guidelines, such as Esa’s Zero Debris Charter, to ensure the sustainability of space exploration and satellite operations. As more satellites are launched into orbit, the risk of collisions and debris accumulation continues to grow, underscoring the importance of responsible practices in space.