By studying rocks from Earth, from the Moon and meteorites it is believed that the age of the Solar System is approximately 4.6 billion years old.
Astronomers believe that the solar system formed from a giant rotating cloud of gas and dust called the solar nebula. As the cloud collapsed under its own gravity, it began to spin faster and eventually formed a flat, rotating disk. The Sun formed at the center, while the planets and other objects in the solar system accreted from the material in the disk.
astronomers.
When the Moon was formed, the Solar System WAS already a solar system.
Protoplanets are very small planets, about the size of a moon. Astronomers believe these celestial objects are formed during the creation of a solar system.
Astronomers.
no
Astronomers
People thought the earth was in the center of the solar system
A bunch of hydrogen atoms clustered together. The H+ smashed together releasing a ton of heat, creating the sun.
astronomers
Many astronomers, historians, regular people, and scientisis know about the planets in our Solar system.
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.