Only God knows.
A2. The whole Solar system is believed to have formed at roughly the same time, about 4.5x109 years ago. Much of its materials came from previous super novas.
The Earth had a brush with a similar sized planet soon after initial formation, and from the debris, the Moon and Earth were constructed. This other planet we call Theia.
Scientifically speaking, planets in our solar system formed at different times through a process called accretion from the solar nebula. However, they all formed within the same overall timeframe of about 4.6 billion years ago.
Jupiter is the oldest planet in our solar system, forming around 4.5 billion years ago along with the rest of the planets. Its large size and location likely allowed it to form relatively quickly after the birth of the Sun.
Mercury is considered one of the oldest planets in our solar system, believed to have formed over 4.5 billion years ago, around the same time as the rest of our solar system. Its surface is heavily cratered, indicating that it has remained relatively unchanged for billions of years.
The planets in our solar system all travel in the same direction around the Sun due to the way our solar system formed from a rotating disk of gas and dust. This rotation set the initial direction of the planets' orbits, resulting in them all moving in the same counterclockwise direction when viewed from above the solar system.
In terms of formation, the planets in our solar system are generally believed to have formed in the following age order: Jupiter and Saturn, Uranus and Neptune, Earth and Venus, and Mercury and Mars. However, exact dating of planetary formation is difficult and subject to ongoing research.
The planets formed out of the solar nebular there is no concept of the "first" they all formed slowly at the same time.
In all probability, all the planets are about the same age. They formed around the same time as all of the other planets give or take a few million years.
All the planets of our solar system are believed to have formed at about the same period in time.
The planets must all have formed at approximately the same time.
No, all the planets formed about the same time. Roughly 4.5 billion years ago.
Scientifically speaking, planets in our solar system formed at different times through a process called accretion from the solar nebula. However, they all formed within the same overall timeframe of about 4.6 billion years ago.
at present the theory is that all of the planets that make up the solar system were formed at the same time when the Solar System condensed out of a cloud of gas about 4.5-4.7 billion years ago.
It is believed, and all suggests that the entire solar system was formed at the same time. There is no reason to believe that Mars has been formed before or afterwards the other planets.
Jupiter is the oldest planet in our solar system, forming around 4.5 billion years ago along with the rest of the planets. Its large size and location likely allowed it to form relatively quickly after the birth of the Sun.
The planets rotate around the sun in the same order because they all formed from the same spinning disk of gas and dust in the early solar system. This disk had a consistent rotation direction, which was inherited by the planets as they formed. The gravitational pull of the sun keeps the planets in their orbits in this same order.
"No"
Mercury is considered one of the oldest planets in our solar system, believed to have formed over 4.5 billion years ago, around the same time as the rest of our solar system. Its surface is heavily cratered, indicating that it has remained relatively unchanged for billions of years.