what is the reason for the origin of the solarsystem and the planets?

Question

vikas here

Answer 1

"What is the reason for the origin of the solarsystem and the planets?" What kind of question is that? Are you asking "what is the reason for our existance?" Cuz I cant answer that.

Otherwise planets form with the collapse of a giant interstellar dust and gas cloud as it contracts. It starts to spin as it shrinks; planets form out of the leftover material that did not fall into the forming star. Thus they should form most of the time with every star.

Answer 2

well there's no reason behind it boy.
the big bang theory in which whole of the universe was a round mass and due to excess pressuse and tempreture inside the mass in the core it bursted and its pieces are now known as planets, stars, asteroids etc.
this is the chemical reason behind the formation of solar system.

Answer 3

The reason is, so that we can be here to see the solar system and the planets.

Answer 4

Yet to find the reason of it. Simply we call it as nature. This is how Mango Tree gives only Mango and your kid will look like you (and not neighbour's). It is like change in seasons, it is like earth is revolving and moon is taking revolutions around it...everything is planned....dont know who planned everything in the perfect order.

Answer 5

The current hypothesis of Solar System formation is the nebular hypothesis, first proposed in 1755 by Immanuel Kant and independently formulated by Pierre-Simon Laplace.[9] The nebular theory holds that 4.6 billion years ago (a date determined via radiometric dating of meteorites),[10] the Solar System formed from the gravitational collapse of a gaseous cloud. This initial cloud was likely several light-years across and probably played host to the births of several stars.[11] Although the process was initially viewed as relatively tranquil, recent studies of ancient meteorites reveal traces of elements only formed in the hearts of very large exploding stars, indicating that the Sun formed within a star cluster, and in range of a number of nearby supernovae explosions. The shock wave from these supernovae may have triggered the formation of the Sun by creating regions of overdensity in the surrounding nebula, causing gravitational forces to overcome their internal gas pressure, and thus, them in turn to collapse.[12]

One of these regions of collapsing gas (known as the solar nebula) would form what became the Sun. This region had a diameter of between 7000 and 20,000 AU[11][13] and a mass just over that of the Sun (by between 0.1 and 0.001 solar masses).[14] As the nebula collapsed, conservation of angular momentum made it rotate faster. As the material within the nebula condensed, the atoms within it began to collide with increasing frequency. The center, where most of the mass collected, became increasingly hotter than the surrounding disc.[11] As the competing forces associated with gravity, gas pressure, magnetic fields, and rotation acted on it, the contracting nebula began to flatten into a spinning protoplanetary disk with a diameter of roughly 200 AU[11] and a hot, dense protostar at the center.[15][16]

Studies of T Tauri stars, young, pre-fusing solar mass stars believed to be similar to the Sun at this point in its evolution, show that they are often accompanied by discs of pre-planetary matter.[14] These discs extend to several hundred AU and are rather cool, reaching only a thousand kelvins at their hottest.[17]

After 100 million years, the pressure and density of hydrogen in the centre of the collapsing nebula became great enough for the protosun to begin thermonuclear fusion. This increased until hydrostatic equilibrium was achieved, with the thermal energy countering the force of gravitational contraction. At this point the Sun became a fully fledged star.[18]


Hubble image of protoplanetary discs in the Orion nebula, a light years-wide "stellar nursery" likely very similar to the primordial nebula from which our Sun formed.From the remaining cloud of gas and dust, the various planets formed. The currently accepted method by which the planets formed is known as accretion, in which the planets began as dust grains in orbit around the central protostar, which initially formed by direct contact into clumps between one and ten kilometres in diameter, which in turn collided to form larger bodies (planetesimals), of roughly 5 km in size gradually increasing by further collisions by roughly 15 cm per year over the course of the next few million years.[19]

The inner solar system was too warm for volatile molecules like water and methane to condense, and so the planetesimals which formed there were relatively small (comprising only 0.6% the mass of the disc) [11] and composed largely of compounds with high melting points, such as silicates and metals. These rocky bodies eventually became the terrestrial planets. Farther out, the gravitational effects of Jupiter made it impossible for the protoplanetary objects present to come together, leaving behind the asteroid belt.[20]

Farther out still, beyond the frost line, where more volatile icy compounds could remain solid, Jupiter and Saturn were able to gather more material than the terrestrial planets, as those compounds were more common. They became the gas giants, while Uranus and Neptune captured much less material and are known as ice giants because their cores are believed to be made mostly of ices (hydrogen compounds).[21][22]

Once the young Sun began to fuse Hydrogen to produce energy, the solar wind (see below) then cleared away all the gas and dust in the protoplanetary disk, blowing it into interstellar space, thus ending the growth of the planets. T-Tauri stars have far stronger stellar winds than more stable, older stars.[23][24]

Answer 6

Why does there have to be a reason?

Answer 7

bigbang theory

Answer 8

so there can be an explanation for how and why they came to be