With the increasing scale of space infrastructure such as large space telescopes, antenna arrays, and solar power stations, the payload fairing size of launch vehicles has become a critical bottleneck constraining their development. On-orbit autonomous assembly via deployable modules has emerged as an important technical approach to overcome this limitation. Deployable modules typically exhibit high packaging ratios; however, the geometric deviations caused by residual strain, assembly tolerances, and dynamic coupling effects after deployment can significantly affect docking accuracy and structural stability, and may even lead to assembly failure. Nevertheless, existing studies have mostly focused on post-deployment final configuration accuracy optimization, with insufficient attention paid to the cooperative strategies between real-time deformation control and motion control during the assembly process. Moreover, a dynamic modeling method capable of accurately describing the coupling between variable-length flexible components and rigid bodies is still lacking. Therefore, how to achieve active configuration correction and coordinated position–attitude control of deployable modules on orbit has become a key challenge in the autonomous assembly of large space structures.

International MEGATRON project links space telescope observations of the infant Universe with the chemical fossil record of the Milky Way.

A packaged self-injection-locked fiber Fabry–Pérot Kerr microcomb was used to generate coherent terahertz signals for both wireless transmission and multi-carrier operation. The system demonstrated 5-meter free-space communication at terahertz using 16-QAM and 64-QAM modulation at symbol rates up to 15 GBd, while also generating a coherent terahertz frequency comb. The results highlight the potential of compact microcomb sources for scalable high-capacity terahertz communication and related photonic applications.