Europe plans to use space claws to clean up orbital debris

News from the European Space Agency this week identified a 2025 launch mission: clean up space. The mission plans to capture and dispose of space debris in orbit. The clearspace, built by a Swiss company, is similar to a small satellite. The device grabs space debris with its claws and escorts it to a lower orbit, where both enter the atmosphere and burn. < / P > < p > it is reported that the ESA initiative has received positive reviews. So far, debris scattered in space orbit poses a threat to the working satellites and astronauts, and the negative impact is growing. The space around the earth has become more and more crowded, but there are not many countries or institutions to clean up today. < p > < p > according to statistics, in the 60 years since the beginning of the space age, mankind has completed more than 5500 launches and left a large number of debris in earth orbit, of which more than 23000 are larger than grapefruit, and millions of smaller and hard to track debris can be found. These debris move along the earth’s orbit, and even a slight collision can have disastrous consequences. If the fragments with a larger volume < / P > < p > collide, a chain reaction may occur. In 2009, an iridium satellite in operation collided with a Russian military satellite, producing thousands of new traceable and smaller debris. This led to the international space station having to move in two years to avoid collision with debris – in 2012, only 120 meters of debris had recently passed the station. < / P > < p > in 2013, ESA launched the payload adapter of two satellites. The adapter weighs about 112 kg and has been kept in a space orbit of 664-800 km since launch. Today, the adapter is a target for clearspace. < / P > < p > the challenge of cleaning up space debris is that the claws responsible for grabbing should be close enough to the debris, and that all the actions to grab the debris can be completed quickly within a safe distance. In order to make space waste cleaning more effective, scientists are also studying other ways to capture debris. < / P > < p > in the future, ESA hopes to accomplish more tasks through the waste disposal plan, such as processing multiple targets at the same time and reducing the task cost. So far, it will cost 100 million euros to process more than 100 kilograms of space debris. < / P > < p > at present, a research team has estimated the debris most likely to pose a threat in low earth orbit. The statistical criteria include their mass, orbital life expectancy and proximity to existing satellites. In one list, between 1985 and 2007, Soviet and Russian rocket debris ranked higher, each weighing more than an elephant and piling up in orbit – giant objects that posed a greater threat than SpaceX’s mass launch of communications satellites into the air. However, despite the research, there is still a lack of political will on a larger scale. At present, most of the first 50 large debris most likely to pose a threat are generated by launching operations in the name of the state or government. Yueshang group has become the third social e-commerce service platform listed in China after being gathered in pinduoduo