The in-orbit verification of a refueling test system has been completed successfully.The test system based on a surface tension tank was developed by the Beijing Institute of Control Engineering(BICE),CAST and launched into spacewith the Tianyuan 1 satellite aboard a LM-7 carrier rocket on June 25.The lifetime of any spacecraft is constrained by fuel it carried.It is a cuttingedge technology therefore to be able to refuel spacecraft in orbit safely and effec- The in-orbit verification of a refueling test system has been completed successfully. The test system based on a surface tension tank was developed by the Beijing Institute of Control Engineering (BICE), CAST and launched into space with the Tianyuan 1 satellite aboard a LM- 7 carrier rocket on June 25. The lifetime of any spacecraft is constrained by fuel it carried. It is a cuttingedge technology therefore to be able to refuel spacecraft in orbit safely and effec-