Here's why:
* Gravity's Reach: Gravity is a force that extends infinitely. It weakens with distance, but it never truly reaches zero.
* Inverse Square Law: The strength of gravity follows an inverse square law. This means that as you double the distance from an object, the gravitational force decreases by a factor of four.
* Earth's Gravity: Even at the International Space Station, which orbits Earth at an altitude of roughly 400 kilometers, there is still about 90% of Earth's gravity present. Astronauts experience weightlessness because they are in constant freefall around Earth.
In summary: While gravity gets weaker the further you are from a source, it never truly goes away.
