To meet the needs of space colonization, specially designed the torso sex doll are undergoing zero-gravity testing. The "Galaxy Companion Project" supported by NASA has developed a thick sex doll with a magnetic joint structure that can maintain a simulated motion trajectory in a weightless state. More importantly, the material innovation - the radiation protection silicone layer can enable silicone products to work stably for more than 5 years in Mars-level cosmic rays. Space station test data shows that such products can effectively alleviate astronauts' loneliness index by 58%, and may become a standard psychological support for deep space exploration.