They were made of dust, not rock
They believe the planets formed from a disc of gas and dust called a "protoplanetary disc".
When the sun was being born, matter that was circling around it formed into planets. There was hundreds of planets, but most of them were destroyed when they crashed into each other. Eventually, only the main 8 planets were left. Then water came on earth from comets.(scientists think so anyway) and life was formed
The first four planets from sun Mercury, Venus, Earth and Mars are rocky planets other planets in solar system are gaseous or dusty planets.
Certainly yes, it meteorite impact formed the same as sites on the other planets.
No. Earth's magnetic field only affects earth, not other planets.
The planets of our solar system were formed at different times, the earth is known to have formed as a planet about 4.6 billion years ago but other planets in the solar system may have formed earlier or later as they were quite conceivably not formed in the same manner as the earth
They believe the planets formed from a disc of gas and dust called a "protoplanetary disc".
The other planets, stars, galaxies, meteors, comets, and asteroids.
We believe that our solar system, including the Sun, Earth and all the other planets, formed about 4.5 billion years ago
first era was the Precambrian
4.6 billion years ago.
Labeled the Big Bang theory, the other planets crashes into eachother, forming a large mass of space rock, which formed the shape of a sphere, or, Earth.
Earth and the other planets formed around this time.
When the sun was being born, matter that was circling around it formed into planets. There was hundreds of planets, but most of them were destroyed when they crashed into each other. Eventually, only the main 8 planets were left. Then water came on earth from comets.(scientists think so anyway) and life was formed
The first four planets from sun Mercury, Venus, Earth and Mars are rocky planets other planets in solar system are gaseous or dusty planets.
Earth, along with the other seven planets in our solar system, formed around 4.6 billion years ago. Exoplanets, the planets orbiting other stars, would have formed at varying times in the past.
At the same time that the Earth (and the other planets) formed : 4.5 billion years ago.