About 10 billion years ago.
It has been believed that there was a big unknown mass of material.It collided with some other thing and broke into pieces which are the planets.The middle part remained as it was and it is called the Sun.
They say the origin of the planets was believed to be formed out of the cloud from which the sun condensed
The explosions of supernovas
Our Moon's maria are currently believed to have been formed by ancient volcanic eruptions.
It has been orbiting the sun since it was formed.
Believed to have been formed 'several hundred thousand years ago'
Yes. The sun has been shining nonstop since Earth formed.
Our 'Sun' has been a star since it was formed, 5 billion years ago.
This was just a theory about how planets were formed. It is no longer believed to have happened, as far as I know.
The Loess Hills are actually believed to have been formed by glaciers during the last Ice Age, not an earthquake.
Yes, the solar system including our Sun and planets is believed to have formed from a large disk of gas and dust called a proto-disk or proto-solar disk, due to gravitational effects. It is currently thought that several stars formed from the same cloud as our Sun.
Because without the Sun, the planets would never have formed, Earth would never have formed, life would never have formed, so you would never have been born, Chris Whitten would never have been born, so wikianswers would never have existed. So we need the Sun for this question to be answered!