FourIntroduction measures are usually taken to deal with the space debrisSpace debris, including: avoidance (to avoid the impact of large cataloged debris), protection (to withstand the impact of numerous small debris)Small debris, mitigation (to prevent the generation of new debris), and removal (to treat the debris that has already been formed). The first three measures can help improve the safety of space activities and prevent the generation of new debris to a certain extent, but have very limited or even no effect on completely controlling and reducing the formed debris and cleaning the space environmentSpace environment.