The space specialty is about to be packed and sent back to Shenzhou 15 to return to Earth tomorrow to keep cool.

CCTV reported thatThe sample cold package of the space station space experiment is divided into two sizes, which can be stored at a temperature of 4C and-20 ℃, just like refrigeration and freezing in a refrigerator.

It uses special technology and materials to make it very compact and compact, which can resist strong impact and vibration during rocket launch and aircraft return, so as to ensure that the whole biological sample is intact.

According to previous news, the Shenzhou 15 passenger group successfully completed four extravehicular activities, becoming the passenger group with the largest number of extravehicular tasks at present.

In addition, they also carried out a number of payload missions, 8 human engineering and technical studies, 28 space medical experiments, and 38 space science experiments, covering life ecology, material science, fluid mechanics, and so on. Valuable experimental data were obtained.