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Astroscale’s New Patent Transforms Space Debris Removal
This patented breakthrough enables scalable, cost-effective debris removal with a distributed architecture, allowing repeatable ADR operations and controlled reentry of multiple objects for cleaner orbits.
astroscale.com
As low Earth orbit becomes increasingly congested with aging satellites and fragmented debris, and new satellites are launched at an accelerating pace, Astroscale Holdings Inc. (“Astroscale”), the market leader in satellite servicing and long-term orbital sustainability across all orbits, announces a major step forward: the issuance of U.S. Patent No. 12,234,043 B2 for its “Method and System for Multi-Object Space Debris Removal.” This patented innovation offers a sustainable and cost-effective distributed architecture approach to active debris removal (ADR), allowing for scalable, repeatable ADR operations and controlled reentry of multiple debris objects.
When safely reentering a multi-ton debris object from orbit, traditional ADR methods face significant limitations — they’re expensive, not sufficiently agile, and unable to carry enough fuel for multi-client missions. Astroscale’s distributed, reusable system overcomes these barriers while uniquely enabling the optionality of controlled reentry, ensuring that any surviving fragments from larger debris objects do not pose risks to populated areas or critical infrastructure on the ground, addressing a growing public safety concern and aligning with international best practices. Under this new patented method, the servicer docks with a debris object (the “client”) and transfers it to a reentry shepherd vehicle in a lower orbit. Once the client is docked with the shepherd, the servicer separates and proceeds to engage a new client, while the shepherd safely guides the initial client into Earth’s atmosphere for reentry. This process repeats, allowing the servicer to remove multiple large debris objects over the course of its mission.
Astroscale’s architecture also supports flexible mission profiles: the shepherd can remain docked through reentry, undocked after performing reentry insertion and returned to orbit, or in some cases, missions can proceed without a shepherd vehicle at all. This adaptability is essential in addressing the diverse size and risk profile of objects in orbit.
This new patent builds on Astroscale’s multi-removal approach for debris. Astroscale’s ELSA-M, set to launch in 2026, is capable of removing several “prepared” inactive satellites in a single mission, meaning satellites designed with technologies such as an interface that will enable docking and removal. By contrast, the newly patented method is designed for large, unprepared objects such as rocket bodies and legacy satellites that were not built to be serviced, and require a safe, guided descent through the Earth’s atmosphere.
www.astroscale.com
When safely reentering a multi-ton debris object from orbit, traditional ADR methods face significant limitations — they’re expensive, not sufficiently agile, and unable to carry enough fuel for multi-client missions. Astroscale’s distributed, reusable system overcomes these barriers while uniquely enabling the optionality of controlled reentry, ensuring that any surviving fragments from larger debris objects do not pose risks to populated areas or critical infrastructure on the ground, addressing a growing public safety concern and aligning with international best practices. Under this new patented method, the servicer docks with a debris object (the “client”) and transfers it to a reentry shepherd vehicle in a lower orbit. Once the client is docked with the shepherd, the servicer separates and proceeds to engage a new client, while the shepherd safely guides the initial client into Earth’s atmosphere for reentry. This process repeats, allowing the servicer to remove multiple large debris objects over the course of its mission.
Astroscale’s architecture also supports flexible mission profiles: the shepherd can remain docked through reentry, undocked after performing reentry insertion and returned to orbit, or in some cases, missions can proceed without a shepherd vehicle at all. This adaptability is essential in addressing the diverse size and risk profile of objects in orbit.
This new patent builds on Astroscale’s multi-removal approach for debris. Astroscale’s ELSA-M, set to launch in 2026, is capable of removing several “prepared” inactive satellites in a single mission, meaning satellites designed with technologies such as an interface that will enable docking and removal. By contrast, the newly patented method is designed for large, unprepared objects such as rocket bodies and legacy satellites that were not built to be serviced, and require a safe, guided descent through the Earth’s atmosphere.
www.astroscale.com
