How do scientists hypothesize that the solar system was formed?

Answer 1

The most immediate origin of the Solar System, was as a cloud of dust, gases, and rocks, resulting from the explosion of a super nova. Probably in the Orion Arm of our Milky Way Galaxy.

These gradually accumulated in one region, and the Sun grabbed most of the Hydrogen and helium. The Sun is over 99.8% of the mass of the whole Solar System.

Eventually these materials clumped together by gravity.

The best date we have for the Solar System; the oldest dated rocks (actually zircons within the rocks); is about 4.5 x 109 years.

Gravitational pressure eventually heated the Sun's material enough that Fission process began and things looked up from that point.

Have a look at the Hertzsprung Russell Diagram, which indicates the position our Sun has in the Universe.

By the 'BIG BANG'! [NO]

Answer 2

They think that when the sun was being born, a nebula collapsed creating a few planets.

Its a beatiful world

With a sun, boy & a girl

Right outside

With a smile and no snide

Bring joy

A sun, girl & a boy

Answer 3

More than 4.6 billion years ago, the solar system was nothing more than a vast spinning cloud of gas, dust, rock, and ice. As this cloud spun, most of the matter came together in the center and formed a star-the sun. The leftover debris then lumped together and formed the nine planets.

Answer 4

Just after the Big Bang all the matter that was created was dust and gas. This dust and gas started to create some little groups. (The reason why they started to group up is as followed: when two atoms meet each other, one of them may wrest an electron, which is not necessary, out of the other one. Let's call this atom 'Atom A'. When the atom with a spare electron (Atom B) touches another one, which has a lack on electrons, spare electron 'jumps off' from Atom A to Atom B. Nonetheless, Atom A still attracts this electron. What happens is that these two atoms just share it and so attract each other. You can see the same situation when using a glue stick.) Then these groups start to grow, and when they reach the size, where the gravity is strong enough to attract some smaller groups, they make these groups orbit them and so create a friction on themselves. The friction creates energy and rises the temperature. Through time the smaller groups finally join the bigger ones. In a couple of billions of years, one of the big groups reaches the size of the Sun. When this happens, it creates such a huge gravitational pull that it even makes another big groups of dust and gas orbit it. But because these groups are far enough, they do not create a friction. They continuously orbit the biggest group of dust and gas. We are used to call these groups 'planets' - they are bigger than an asteroid, but smaller than a star.

But they were completely different that time. There were about twenty of them. Ones were bigger, other ones were smaller. But the ones that were bigger attracted the smaller planets, which then joined together. And so on till there were only 8 planets left.

I hope I have answered your question :)

Answer 5

Scientists hypothesize that the solar system was formed from a rotating disk of gas and dust called the solar nebula. Gravity caused the material in the nebula to clump together, forming the Sun at the center and the planets from the leftover material. This process, known as the nebular hypothesis, is supported by observations of other star systems forming in a similar way.

Answer 6

They believe a large gas cloud in space was condensed into what we now call the sun. Chunks of this cloud flew into orbit around the sun and eventually condensed into planets.

Answer 7

By The Big Bang over 4.6 billion years ago.

Answer 8

Many scientists formed their own individual theory's as to how the solar system was formed, however, the most commonly known theory is "The big bang theory".

Answer 9

See the related question