A space mission may last from one week to twenty-four weeks but what happens when the crew returns to earth? Within a few hours, they are transported from a weightless environment to normal gravity atmosphere. Instead of living where everything tends to float, they come back to a planet where every moment is an effort. Re-adapting to Earth’s gravity is hard as their muscles have been weakened and the heart has to work harder to pump blood.
Some astronauts who return from space may faint. They also have trouble standing up, walking and turning corners. Moreover, some cosmonauts reported that they are sometimes shocked to see a cup or another object crash on the floor when they let go in mid-air Although it is exciting to fly and live in space, side-effects of the journey may be permanent.
Anıl Karamahmutoğlu, 9-C