Environmentally Friendly Sampling and Observation System for Exploration of Antarctic Subglacial Lakes  
[PERSON]  
1 Polar Research Center, Jilin University, Changchun 130012, China; [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Y.S. ); [EMAIL_ADDRESS] (P.T. ); [EMAIL_ADDRESS] (T.W. ); [EMAIL_ADDRESS] (N.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.W. ); victor@[EMAIL_ADDRESS] (X.W. ); [EMAIL_ADDRESS] (R.W. ); [EMAIL_ADDRESS] (Z.W. ); [EMAIL_ADDRESS] (W.W.)  
[PERSON]  
8 [PERSON]  
1 Polar Research Center, Jilin University, Changchun 130012, China; [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Y.S. ); [EMAIL_ADDRESS] (P.T. ); [EMAIL_ADDRESS] (T.W. ); [EMAIL_ADDRESS] (N.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.W. ); victor@[EMAIL_ADDRESS] (X.W. ); [EMAIL_ADDRESS] (R.W. ); [EMAIL_ADDRESS] (Z.W. ); [EMAIL_ADDRESS] (W.W.)  
[PERSON]  
8 [PERSON]  
1 Polar Research Center, Jilin University, Changchun 130012, China; [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Y.S. ); [EMAIL_ADDRESS] (P.T. ); [EMAIL_ADDRESS] (T.W. ); [EMAIL_ADDRESS] (N.Z. ); victor@[EMAIL_ADDRESS] (X.W. ); [EMAIL_ADDRESS] (R.W. ); [EMAIL_ADDRESS] (Z.W. ); [EMAIL_ADDRESS] (W.W.)  
[PERSON]  
8 [PERSON]  
1 Polar Research Center, Jilin University, Changchun 130012, China; [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Y.S. ); [EMAIL_ADDRESS] (P.T. ); [EMAIL_ADDRESS] (T.W. ); [EMAIL_ADDRESS] (N.Z. ); victor@[EMAIL_ADDRESS] (X.W. ); [EMAIL_ADDRESS] (R.W. ); [EMAIL_ADDRESS] (Z.W. ); [EMAIL_ADDRESS] (W.W.)  
[PERSON]  
8 [PERSON]  
1 Polar Research Center, Jilin University, Changchun 130012, China; [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Y.S. ); [EMAIL_ADDRESS] (P.T. ); [EMAIL_ADDRESS] (T.W. ); [EMAIL_ADDRESS] (N.Z. ); victor@[EMAIL_ADDRESS] (X.W. ); [EMAIL_ADDRESS] (R.W. ); [EMAIL_ADDRESS] (Z.W. ); [EMAIL_ADDRESS] (W.W.)  
[PERSON]  
8 [PERSON]  
1 Polar Research Center, Jilin University, Changchun 130012, China; [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Z.D. ); [EMAIL_ADDRESS] (Z.D. ); yan@jlu. lakes are essential for researching their physical and chemical properties, as well as the characteristics of the microorganisms within them [2]. At present, only Russia and the United States have managed to successfully access Antarctic subglacial lakes, utilizing deep-ice core drilling technology [3; 4] and clean hot-water drilling technology [5; 6; 7] to acquire water and sediment samples from these lakes [8]. Nevertheless, both drilling methods employed by these countries involve \"open borehole\" drilling techniques, which increase the risk of contamination of the subglacial lake water environment and hinder the accurate acquisition of physical and chemical parameters as well as the study of microbial ecological characteristics. Consequently, ensuring environmentally friendly sampling of subglacial lakes remains a major challenge [9]. In nature, spiders display fascinating web-surfing and diving behaviors to support their weight and perform essential activities, such as hunting and reproduction [10; 11]. Spiders can spin and reel silk to dive from high altitudes, using various sensory organs to collect information. Once they complete the desired activities, they return to their original paths [12; 13]. Inspired by the behavior of spiders ascending and descending by spinning and reeling silk, [PERSON] and others [14] proposed the \"ice spider\"-RECoverable Autonomous Sonde (RECAS), a \"closing borehole\" type sonde designed for exploring Antarctic subglacial lakes with minimal external contamination (Figure 1). The RECAS presents an innovative solution to the contamination challenge by storing the cable inside the sonde for sonde lowering and lifting, with the end of the cable connected to the surface system.