Chinese startup tests flexible robotic arm in space for on-orbit servicing

HELSINKI — A Chinese commercial company has conducted an on-orbit demonstration of a flexible robotic arm, marking progress toward capabilities for satellite servicing, refueling and debris removal.

Sustain Space's Xiyuan-0 satellite, also known as Yuxing-3 (06), launched on a Kuaizhou-11 rocket March 16 (UTC). The satellite features a flexible robotic arm with the aim of testing simulated refueling operations, force-compliant manipulation and precision control.

The tests mark apparent progress towards on-orbit servicing capabilities such as satellite life extension, in-space assembly and debris mitigation. While stating its vision to develop capabilities, the company has not yet outlined detailed plans or timelines for next missions and the transition from demonstrations to operations. The reported refueling activities were simulations, with no actual propellant transfer confirmed.