About 90% of Earth's gravity reaches space. So why do astronauts float inside spaceships orbiting the earth? Why not fall to the ground in the attraction of the world? At least 10 percent of the Earth's gravity is acting on them. Why is that attraction becoming ineffective? The simple answer is that an object orbiting the Earth in space loses weight, so it floats, not falling to the ground. But does the object lose weight because it is so high? No, it's not. The real reason is that they are orbiting the Earth, but this orbit is actually falling towards the Earth. And we know that an object falling from above has no weight. For example, when we go down the elevator from the 20-30th floor of a high building, chest heaves. We seem to be losing weight and falling to the ground almost weightless. We can say this from our common experience.
See another interesting example. We threw a heavy cricket ball. After going some distance it will fall to the ground. Then I threw harder. The ball goes a little further and falls to the ground. I threw harder, harder... One day it will be seen, the ball goes up high in the sky and circles the earth, not falling to the ground; That is, the ball loses weight when it spins, so it does not fall to the ground under the pull of gravity. This means that objects traveling in orbit lose weight. That is why it can be said that the astronauts lose weight inside the rocket and float.