The astronauts who have been on the longest business trip have entered the stage of preparation for return

The astronauts who have been on the longest trip have entered the stage of preparation for return. The current physical condition of the three astronauts on the Shenzhou 13 crew Both his physical and psychological status are better than expected and meet the conditions for returning to Earth. The astronauts who have traveled the longest are entering the stage of preparation for return. The longest-traveling astronauts have entered the preparation stage for return 1

The three astronauts of the Shenzhou 13 spacecraft have been working and living in the space station for more than 5 months. According to the plan, they will work and live in orbit. In about 180 days, the countdown to "going home" has now begun. Starting from this week, they have entered the stage of preparation for their return. Let us look forward to their early and victorious return!

Organize the "room"

The astronauts put all relevant equipment in place

After the astronauts enter the core module of the space station, from The cargo spaceship moved down a lot of daily necessities and experimental equipment, and arranged the "little home" in the sky.

Before returning home, they need to restore the cabin environment to its original state as much as possible. For example, fitness equipment, experimental supplies, maintenance spare parts, etc. need to be repacked and returned to the designated location. In order to prevent potentially dangerous floating and sliding, some items also need to be fixed to the inner wall of the space station. In addition, they need to inventory and classify the remaining supplies so that the future crew of the Shenzhou 14 spacecraft can "seamlessly switch" to life in orbit.

Packing "baggage"

Astronauts are preparing to go home, and of course they have to pack their "baggage". This includes not only tangible items, but also "carrying data." During the half-year "business trip", the three astronauts carried out a number of experiments in the fields of space physics, life sciences, materials science, astronomical exploration and other fields in the Tiangong Space Station. The scientific research value is great, and the experimental data and records must be obtained from the core module of the space station. "Carry" it to the return capsule of the Shenzhou 13 spacecraft and bring it back to the ground as soon as possible.

In addition, the garbage accumulated in the space station in the past six months also needs to be "taken away". Before the astronauts return, they need to do a thorough "cleaning" of the space station and do a good job of collecting and sorting it out. For example, residual food waste, sanitary product waste, waste generated from on-orbit experiments, etc. need to be packaged and sorted, put into the orbital cabin, and then fall into the atmosphere with the orbital cabin and burn up.

Exercise

Astronauts carry out physical strengthening exercises

Astronauts work and live in the microgravity environment of the space station for a long time. Big changes can occur, such as fluid loss, muscle atrophy, bone loss, and even immune system disorders. In order to mitigate the possible harm caused by these conditions, astronauts must exercise in the space station every day. They also need to conduct intensive exercises before returning home to make adaptive adjustments in advance for returning to the ground.

In addition, the weightless physiological effect protection team at the Astronaut Ground Center will provide "exercise prescriptions" based on the real-time physical conditions of the three astronauts. After they land safely, the professional team on the ground needs to carry out protection and isolation as soon as possible based on the previously accumulated data and real-time detection to help the astronauts restore their physical fitness and mental health and adapt to life on earth.

At the same time, in order to welcome the three astronauts back to Earth safely, the Jiuquan Satellite Launch Center search and rescue team teamed up with other search and rescue forces to launch targeted training exercises at the Dongfeng Landing Site.

It is reported that the current physical and mental conditions of the three astronauts on the Shenzhou 13 crew are better than expected and meet the conditions for returning to Earth.

Familiar with the process

Looking forward to seeing the safe landing of the return capsule as soon as possible

Although the technology is mature and reliable, the return capsule of the spacecraft returns to the earth. The journey is still full of dangers and challenges. Generally speaking, astronauts must be familiar with the necessary operations and emergency plans during the entire return process, such as when to separate the manned spacecraft from the space station assembly, when to start the thrusters, etc.

In addition, they also need to carefully check the spacecraft return capsule to ensure that all systems are working properly, especially the spacecraft propulsion device and power control system.

"Turn off the lights and lock the door"

Schematic diagram of various hatches of the Tiangong Space Station

Just like a house that has not been inhabited for a long time must cut off the water supply Just like a power outage, astronauts need to set up their departure status before leaving the space station, and set up electricity, water, gas, communications, etc. in place. Based on domestic and foreign experience, they are likely to have to adjust forty or fifty items to ensure that the space station can transmit effective parameters to the ground during subsequent unmanned missions.

Before leaving, the astronauts have to close all the hatches in the space station, then return to the Shenzhou 13 spacecraft from the core module. After sitting safely, they fasten their seat belts and check the airtightness of their space suits. performance and equipment integrity. After everything is ready, wait for the "departure"! The longest-traveling astronauts have entered the return preparation phase 2

On the 23rd, the Shenzhou 13 astronaut crew successfully completed the second lesson of the "Tiangong Classroom".

The three astronauts of Shenzhou 13 have been working and living in the space station for more than five months. According to the plan, they will work and live in orbit for about 180 days. Now they have entered the countdown to "go home". A CCTV reporter learned from the Astronaut Training Center that the three astronauts will begin preparations for their return this week.

As my country’s astronaut crew that has been in orbit the longest, the three astronauts conducted two extravehicular activities, two Tiangong classrooms and Beijing-Hong Kong-Macao Tiangong dialogue activities while in orbit. On the basis of Shenzhou 12, more than 20 scientific experimental tasks have been completed. As about 180 days of space life comes to an end, the astronauts have begun preparing to "go home" in the past two days.

Zhong Weiwei, associate researcher at the Aerospace Medical Engineering General Office of the China Astronaut Training Center: There is a large amount of materials that need to be sorted out before leaving, including those packages on Tianzhou-3 , all kinds of products need to be organized. Shenzhou 14 may not arrive again until more than a month later, so these products and equipment need to be put in place in advance.

In addition, the important thing is the downside. Bringing samples back from the sky and bringing back important samples also need to be planned in advance. Starting this week, we will focus on this area of ??work.

According to reports, the current physical and mental conditions of the three astronauts on the Shenzhou 13 crew are better than expected and meet the conditions for returning to Earth. From the video, we can see that these days, astronauts are basically doing physical strengthening exercises after work.

Zhong Weiwei, associate researcher at the Aerospace Medical Engineering General Office of the China Astronaut Training Center: We have also focused on strengthening the training and medical examinations on the ground. Based on their physical on-orbit examinations and the data obtained, we also made targeted adjustments to their protection plans before their return. In fact, the focus at this stage is to ensure that (the astronauts) exercise their entire body, to ensure that we land safely and return safely when we finally land. The longest-traveling astronauts have entered the return preparation phase 3

At 15:59 on March 27, Beijing time, the Tianzhou-2 cargo spacecraft evacuated from the core of the space station after completing all scheduled tasks in the space station assembly phase. cabin assembly.

The various space station modules, manned spacecraft, cargo spacecraft, relay satellites used in my country’s space station project and the Long March series launch vehicles used to launch these spacecraft are all developed by China Aerospace Science and Technology Corporation, Engineering Other subsystems also involve relevant units affiliated to the Aerospace Science and Technology Group.

Schematic diagram of the space station

The Tianzhou-2 cargo spacecraft is the first cargo spacecraft launched during the key technology verification phase of the Chinese Space Station. At 20:55 on May 29, 2021, the Long March 7 carrier rocket carrying Tianzhou 2 was ignited and launched on time at the Wenchang Space Launch Site, and then Tianzhou 2 was accurately sent into the predetermined orbit.

Tianzhou-2 carried 6.8 tons of supplies such as astronauts’ living supplies, extravehicular space suits and space station platform equipment, application loads and propellants.

During the in-orbit operation of the Tianzhou-2 spacecraft, a series of expanded application tests were conducted. At present, the Tianzhou-2 spacecraft is in good condition and will re-enter the atmosphere at an appropriate time under ground control.

The three astronauts of Shenzhou 13 have been working and living in the space station for more than 6 months. According to the plan, they will work and live in orbit for about 180 days. Now they have entered Countdown to "going home". According to the Astronaut Training Center, the three astronauts will begin preparations for return this week.

It is understood that the current physical and mental conditions of the three astronauts on the Shenzhou 13 crew are better than expected and meet the conditions for returning to Earth.

As my country’s astronaut crew that has been in orbit the longest, the three astronauts conducted two extravehicular activities, two Tiangong classrooms and Beijing-Hong Kong-Macao Tiangong dialogue activities while in orbit. On the basis of Shenzhou 12, more than 20 scientific experimental tasks have been completed.

At the same time, in order to welcome the three astronauts back home safely, the Jiuquan Satellite Launch Center search and rescue team teamed up with other search and rescue forces to launch targeted training at the Dongfeng Landing Site drill.

Let us look forward to the safe and smooth return of the God-13 astronauts!