On December 4, the Shenzhou 14 astronauts returned to the ground on the Shenzhou 14 spacecraft.
This is the first time that astronauts have landed on the Dongfeng Landing Field at night in winter. The search and rescue mission faces two difficulties: extreme cold and dark night.
Compared with returning during the day, it is more difficult to search and find the target at night. The helicopter search and rescue team cannot see the return capsule visually at night, and must use low-light and infrared optical equipment to find the return capsule. It is more difficult to reach the landing site at night, and the Gobi low buildings Uneven ground, coarse sand and stones all pose risks for helicopters to land at night.
In the face of extremely cold conditions, the landing site maintains the medical supervision and medical insurance vehicles in accordance with the idea of rescuing astronauts in the warmest way. Under extremely cold conditions, it can provide astronauts with a suitable temperature for medical supervision and medical insurance. You can eat hot meals, drink hot water, and take hot baths at the landing site.
At the same time, all field work equipment has been protected against low temperature, the vehicle is equipped with a low temperature starting device, communication equipment is equipped with spare batteries, and the temporary construction site at the landing site is equipped with power guarantee facilities for 8 hours of heating.
(Produced by Le Xiaomin)
Responsible editor: [He Sanli]