Why do planets continuous to move around the sun?

Answer 1

Isaac newton's Three Laws of Motion:

1. A body at rest tends to remain at rest, unless acted on by an outside force.

2. A body in motion tends to remain in uniform motion.

3. For every action, there is an equal and opposite reaction.

Everything in the universe is in motion, and everything in the universe is attracted to everything ELSE in the universe by the force of gravity.

Perhaps 10 billion years ago, several gigantic stars exploded in supernova, creating black holes and neutron stars and pulsars in the centers of the dead stars, but flinging trillions of tons of gas, dust, and stellar "ash" into the galaxy. Stars burn hydrogen in nuclear fusion reactions, creating helium and heat in the stellar cores. As massive stars age, they burn up most of their hydrogen and start fusing helium into carbon and oxygen and other light elements. But when the star dies, the enormous energies also fuse the carbon and oxygen into iron, gold, uranium and all of the other elements we know.

The dust, gas and stellar "ash" of iron, tungsten, gold and everything thrown from many stars drifted together in space throughout uncountable millions of years - until another supernova, one close by, caused a shock wave to ripple through the dust clouds and caused it to collapse together under gravity.

But the dust clouds were already moving, and so gravity brought the matter together, and made it spin, and as the hydrogen gas coalesced in the center, it collapsed until its internal heat and pressure caused it to burst into its own nuclear fire.

The dust around the newborn star also collapsed into lumps, which became billions of masses, all of which were attracted to each other by gravity. They crashed together, and stuck together, and grew into the planets over the course of another billion or more years, all rotating, all spinning, all moving - and all tied to the Sun by gravity.

And so now, four billion years later, the planets are still moving, because nothing has made them stop. Newton's second law says that they will all move straight, unless acted on by an outside force - and there the force of gravity brings everything together. And the planets continue in motion in their delicate balance of trying to fly straight away from the star, but tied to the star by gravity - a balance that cannot be broken until some other force exerts some other pressure.

Answer 2

Gravity pulls and pushes them around