T - 3 days: quiet time

Three days before launch, the outside world ceases to exist.

The astronauts enter the so-called "health stabilization period" — strict health isolation to eliminate the risk of infection. After all, even a common cold in microgravity can become a serious issue.

The crew moves to special facilities, such as those at Kennedy Space Center in Florida.
Surrounded only by the closest technical and medical staff, they focus on final briefings and simulations.

Interestingly, during this period, they also have a moment to contact their loved ones — though mostly online.

T - 2 days: technology and body under scrutiny

Two days before launch are dedicated to intensive testing.

Pressure suits are meticulously checked for tightness and fit.
Astronauts practice emergency procedures, communication with flight control, and... work rhythm in the capsule.

This is also the time for full medical examinations:

• blood pressure,

• heart function,

• respiratory system,

• performance parameters.

Doctors and engineers must be absolutely certain that the body is ready for extreme g-forces — and the mind for the mission's unpredictability.

In the evening, there is a weather briefing.
It determines whether the launch will proceed as planned.

T - 1 day: traditions and calm before the storm

The final day on Earth is filled with symbolism.

Depending on the traditions of the space agency, various ceremonies take place:
- in Baikonur, a tree is planted,
- at Kennedy Space Center, a commemorative crew poster is signed.

This is also the time for last contact with family — often via video, sometimes through a glass pane.

Astronauts consume a special, easily digestible meal to ensure bodily stability during the launch.
In the evening — very early to bed.
Wake-up occurs even 6-8 hours before launch.

Launch: seconds that decide everything

Launch day is a strictly programmed ritual:
- donning suits,
- transport to the platform,
- ingress into the capsule.

Final system checks, hatch closure, and... countdown.

As the rocket ascends into the sky, the whole world witnesses several minutes of a spectacular display.

But behind that moment are not only months of preparation but also these last three days, which are often the most emotional and crucial stage for the astronauts themselves.