CCTV News: The return capsule of the Shenzhou 19 manned spacecraft has successfully landed. The Shenzhou 20 crew will replace the 19 crew and stay in the space station for about 6 months. What are the characteristics of the Shenzhou 20 crew's mission?

During orbital residence, the Shenzhou 20 crew will carry out space science and application practice (test) experiments, implement astronauts' exit activities and cargo entry and exit, carry out space debris protection devices installation, out-of-cabin loads and out-of-cabin equipment installation and recycling, and will also carry out popular science education and public welfare activities, as well as space load tests, and continue to give full play to the comprehensive application benefits of the space station.

This space science practice (test) test task will use zebrafish, planaria and Streptocytica as research objects to carry out three life science experiments. Among them, the planaria space regeneration experiment is the first time in China. This project will further understand the basic mechanism of regeneration from the individual level, and the research results will help solve health problems such as human space damage.

In addition, the Shenzhou 20 astronaut crew will also accept visits from the Tianzhou 9 cargo spacecraft and the Shenzhou 21 manned spacecraft, and are scheduled to return to the Dongfeng landing site in late October this year.