We can't be certain of the exact sequence of events, but there are a few things we're pretty sure of. Because the Earth is made of iron, and silicon, and lead and gold and uranium, we know that the Earth and our solar system are "third generation", or later; we formed from the wreckage of earlier stars that went supernova. Supernova explosions are the ONLY way that these heavy elements can be formed. It probably took more than one supernova to create the heavy elements we find here.
From the gas and dust existing in space and thrown off from the supernovae, a nebula formed, and gradually began to condense under the influence of gravity. Here's where it gets interesting. Mathematical simulations of a condensing nebula doesn't seem to generate a solar system - UNLESS an external shock wave causes it to collapse. So it probably took one more supernova, and not too far away, to cause our solar system to form when it did.
Gravity.
Gravity keeps the planets in orbit around the sun and the stars and the stars in orbit around the center of the galaxy. Gravity also holds the stars together against their own internal pressure.
The force of gravity caused the solar nebula to contract. As the nebula collapsed under its own gravity, it began to spin and flatten into a disk shape, eventually forming the Sun and the planets. Additionally, the heat and pressure generated by the gravitational contraction contributed to the collapse of the nebula.
Galaxies and planets are thought to have formed from the gravitational collapse of vast clouds of gas and dust in space. Within these clouds, gravity caused the material to clump together, eventually leading to the formation of galaxies composed of billions of stars and planets within these galaxies.
Further collapse is prevented by electron degeneracy pressure.
The sun's immense gravity creates a central force that keeps the planets in orbit around it, a phenomenon known as gravity-assisted motion. This gravitational force is balanced by the planets' inertia, resulting in stable orbits. This gravitational interaction is what governs the motion of all the planets in the solar system.
Gravity keeps the planets in orbit around the sun and the stars and the stars in orbit around the center of the galaxy. Gravity also holds the stars together against their own internal pressure.
Planets have gravity because they have mass.
The force of gravity caused the solar nebula to contract. As the nebula collapsed under its own gravity, it began to spin and flatten into a disk shape, eventually forming the Sun and the planets. Additionally, the heat and pressure generated by the gravitational contraction contributed to the collapse of the nebula.
Galaxies and planets are thought to have formed from the gravitational collapse of vast clouds of gas and dust in space. Within these clouds, gravity caused the material to clump together, eventually leading to the formation of galaxies composed of billions of stars and planets within these galaxies.
Planets are held in orbit around stars by gravity. Their rotation is balanced by the gravitational pull of the star, so they remain in a stable orbit without spinning off into deep space. This gravitational force acts as a sort of "tether" that keeps the planets in place.
Further collapse is prevented by electron degeneracy pressure.
The other planets do have gravity.
The sun's immense gravity creates a central force that keeps the planets in orbit around it, a phenomenon known as gravity-assisted motion. This gravitational force is balanced by the planets' inertia, resulting in stable orbits. This gravitational interaction is what governs the motion of all the planets in the solar system.
Yes. All planets have gravity. Earth is one of those inner planets.
No. Planets have gravity as a result of their own mass.
The premise of this question is incorrect; all planets have gravity.
the planets were formed by gravity because starts had gravity around them witch caused them to become bigger and be planets i think.. idk