Because, either we happen to be in it's way, or the object is pulled in by Earths gravitation field.
It is called a meteorite
If the object actually makes it to the Earths surface it is called a Meteorite. It does not matter if its man made or from outer space. I know they say a satellite has crashed to earth etc but its is still a meteorite. But the definition of meteorite is an object that has come from space and actually impacted with the planet.
the ball will go on forever unless it hit another object
The closest natural object to Earth is the moon.
Saturn's moon Titan is the most recent object found in space to be similar to Earth.
What is an object sent into space to circle earthA satellite ?
moon
The Moon is the closest object in space to Earth. Earth's moon is of particular importance to us because it is the closest object to Earth in space. And it is the only extraterrestrial object that has been visited by astronauts.
The object launched into space has rocket motors with more force taking it away from Earth than Earth's force of gravity has in pulling the object toward its center.
This is because the object is so large in size.
When it hits the Earth it becomes a meteorite which can be found and picked up. Most meteors never make it because they burn up in the atmosphere.
it orbits an object in space.