Celestial bodies, such as planets and stars, remain in their own place due to the force of gravity. Each body exerts a gravitational pull on others, which keeps them in orbit around each other without drifting away.

For example, Earth remains in its orbit around the Sun because the Sun's gravity pulls it toward itself, while Earth's forward motion keeps it from falling into the Sun. Similarly, moons orbit planets due to their gravitational attraction. This balance between gravitational force and the motion of celestial bodies allows them to maintain their positions in space.