How Are Astronauts Sent into Space? - International Space Station - ISS

How Are Astronauts Sent into Space? - International Space Station - ISS
How are astronauts sent to the space station, which is moving at 28 thousand kilometers per hour?
The International Space Station orbits the Earth at an incredible speed of 28,000 kilometers per hour. Scientists and astronauts have been conducting various experiments and researches in space for years thanks to the International Space Station.
The deadline for the space station, which initially had an average lifespan of 30 years, was announced as 2024. However, NASA and SpaceX are currently working on extending the life of the station.
Isn't it surprising that a space station can travel at around 28,000 km, many times faster than airplanes?
An airplane uses fuel for energy while constantly moving against air resistance. However, the space station moves under the influence of Earth's gravitational force and does not use any fuel.
The only time the space station uses fuel for motion is when it has to act against this gravitational force to change its motion or trajectory.
The speed of the space station depends on the force of gravity, which in turn depends on the mass of the station, the mass of the Earth, and the distance between them.
Obviously, the mass of the station is much less than the mass of the Earth, so the main determinant of the speed of the station is the distance between them, that is, the height of the station from the Earth's surface.
Any spaceship or rocket that needs to dock with the International Space Station will have a speed similar to that of the space station at the same altitude.
Therefore, although the process of docking a spacecraft launched from Earth to the station is very complex, it is not difficult as the relative velocities are not very different from each other.
Do astronauts on the International Space Station feel the speed of the station?
You feel it when a car is moving very fast, because the car you are in is moving very fast relative to the environment. However, you do not feel that the Earth is spinning at 1600 km/h.
This is because you are moving with it, so your velocity relative to Earth is zero.
Similarly, those who are on the space station do not feel it because their speed is zero relative to the station, although they are moving at 28 thousand km per hour.
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