...The Chinese SJ-21 satellite was seen on January 22 changing its usual place in the sky to approach decommissioned satellite Compass-G2. A few days later, SJ-21 attached to G2, altering its orbit.Chinese officials haven't yet confirmed that the apparent space tug occurred.Over the course of the next few days, the spacecraft couple started dancing westward, ExoAnalytic's video footage showed. By January 26, the two satellites separated, and G2 was kicked into oblivion.The Compass-G2, or BeiDou-2 G2, is a spacecraft from China's BeiDou-2 Navigation Satellite System that failed shortly after launching in 2009. For more than 10 years, the metal carcass...