Four astronauts should arrive on Earth on Tuesday after their stay on the International Space Station, and the journey, which will last about 20 hours, will have its own risky moments, according to the media in France, which are following the event, since the Frenchman Tom Peske is among the astronauts.
The journey begins when the capsule containing the astronauts detaches from the International Space Station.
Astronauts will be in constant communication with engineers on Earth, because the first of the risky moments is entering the atmosphere, reported French television El Se I (LCI).
At that stage, the temperature can reach 1.600 degrees Celsius.
If braking is not applied properly, the capsule may miss entering the atmosphere and drift through space, or in the worst case, burn itself out, the television added, recalling the accident on February 1, 2003, when seven people lost their lives when the spacecraft burned.
When that phase is over, the astronauts will have less than an hour before landing.
It remains to reduce the enormous speed of the capsule of about 800 kilometers per hour.
In order to achieve this, the first parachutes are activated at about ten kilometers from the Earth, and then at about three kilometers the largest parachute that will reduce the speed to 20 kilometers per hour.
A few moments later, the capsule will expel all excess fuel and oxygen.
When landing on the ground, certain devices on the capsule will absorb the impact, making it as mild as possible.
Once on the ground, the capsule is approached by a dedicated vehicle carrying a rescue team to help the astronauts out, as they are unable to walk.
The astronauts are immediately placed in chairs and then undergo a series of medical tests.
Peske will be quickly transferred to Cologne, where the European Astronaut Center is based. He will be there for at least three weeks in rehabilitation.
Former astronaut Michel Tonjini said that for every astronaut, after a stay in space, it is necessary to get used to the weight of the Earth again.
"At first, everyone will be tired, because the journey is long," Tonjini told RTL and added that the astronauts will only walk for an hour a day at the beginning and will gradually learn to walk on Earth again.
Tonjini said that there are other things that need to be relearned and stated that after his first flight, he turned his head to the left side, because the muscles on the right side of his neck were too weak.
In addition to physical rehabilitation, there is also psychological rehabilitation, because many astronauts experience some form of sadness upon leaving space, Tonjini added.
In addition to Peske, American space agency (NASA) astronaut Megan MacArthur, American Shane Kimbrough and Japanese Akihiko Hoshide are returning to Earth.
Bonus video:
