A comet stays in orbit by the gravitational pull of other planets/ objects in space but pulled to a planet because of the stronger pull gravity.
The gravitational forces between the Earth and Moon keep things together. The moon is slowly getting farther from Earth, however. Ancient humans would have seen a much larger moon in the night sky...
Gravity and velocity.
The force that keeps the moon in orbit around the sun is the gravitational force between the sun and the moon. This force causes the moon to continuously fall towards the sun but its orbital motion prevents it from colliding with the sun.
Both planets and comets in our Solar system share the same thing. The fact that they orbit Sol our local star. The planets orbit in a regular timely fashion in elliptical orbits that keep them about the same distance from the sun all the time. A comet has an elliptical orbit that takes it way out in our system and then it falls back in and comes close to the sun before heading back out again.
The mutual gravitational attraction between the earth and the sun is the force that keeps the earth in orbit around the sun. It's the only force required, which is lucky, because it's the only force that exists.
The two forces that work together to keep the planets in orbit around the sun are gravity and inertia.
gravity and force
The electrostatic forces between the protons and the electrons keep it in orbit.
the earth's gravitational pull is just strong enought to keep it in orbit, but not strong enought, at that distance, to pull it back to earth
Gravity and inertia are the two forces that keep the moon and other satellites in orbit around Earth. Gravity pulls the moon towards Earth, while the moon's inertia keeps it moving forward in a curved path, resulting in a stable orbit.
The forces are gravitational forces. They become weaker with distance and mass reduction
There is a pair of mutual gravitational forces between the sun and everything else in the universe. One result of these forces is to keep the planets in orbit around the sun.
solar power
No force is necessary to keep a moving object in motion. But if you want it tofollow a curve, such as for example a closed orbit, then that takes force. Theforce that keeps Neptune in its closed orbit is the same force that keeps everyplanet, moon, comet, and asteroid in its own closed orbit around its own centralbody. It's the force of gravity.
You're half-way there. The mutual, equal gravitational forces between the Earth and Sun maintain the Earth's stable, closed, elliptical orbit around the Earth/Sun common center of mass.
It would spin out of earths orbit. And most likely hit a planet, star, comet, or keep on going.
You're half-way there. The mutual, equal gravitational forces between the Earth and Sun maintain the Earth's stable, closed, elliptical orbit around the Earth/Sun common center of mass.