China's newly-developed SeaWing 1000 underwater glider has set a new national record after working continuously for 91 days without any malfunction in the South China Sea. The glider was retrieved by scientists from Shenyang Institute of Automation (SIA) under Chinese Academy of Sciences (CAS) on Thursday. During its 1,884-kilometer voyage, the glider collected the data of altogether 488 cross-sections. Both its sailing distance and data volume set national records as well.