1. Principles for cooperation in the civil exploration and use of the moon, mars, comets, and asteroids for peaceful purposes,2020
2. Astroscale's ELSA-d successfully demonstrates repeated magnetic capture;Astroscale,2021
3. The 2019 US government orbital debris mitigation standard practices;Bacon,2020
4. Mission ORCA: Orbit refinement for collision avoidance;Barles;Advances in Astronautics Science and Technology,2022
5. Making space on orbit: Responsible orbital deployment in the era of high-volume launch;Beck,2019