the solar system began as a huge disc of dust and gas revolving around the sun at the centre and then from that dust and gas planets began to form.
Gravity.
No planets in our solar system begin with the letter 'T'.
The solar system is all nine planets; includin pluto. It began when God created the universe.
An explosion from outside the nebula
Another answer: Open-ended questions usually begin with who, why, what, when or where. If you were for example doing a project on the solar system then you could have "What is the solar system" or" Who called it the solar system"
It is believed that the death of a star in a supernova explosion, gave the inertia for our Solar System to begin to form.
Full moon and flares are solar system words. They begin with the letter f.
The Milky Way is the galaxy we live in. If we don't have a galaxy then we wouldn't have a solar system to begin with.
Because it was originally believed that the Earth was the centre of the solar system. Observations by scientists over time later proved the sun to be at the centre of the solar system, and that all other planets revolve around it.
About four thousand six hundred million years ago.
The big bang, a massive explosion creating all life as we know it.
"Our solar system." The "part of our galaxy" that's in our solar system is the solar system.