Does anybody know the formation of the solar system?
Question:
Answer:
Don't want to cut and paste it all, but you can find that information on Wikipedia in the third section down "Age and origin of the solar system"
Link: http://en.wikipedia.org/wiki/solar_syste...
(Or you can just wait a few minutes until someone else cuts & pastes the whole thing.
Some other good sources:
http://www.nineplanets.org/origin.html...
http://www.enchantedlearning.com/subject...
http://www.britannica.com/eb/article-275...
Scientists estimate that the solar system is 4.6 billion years old.The current theory of solar system formation is the nebular hypothesis.
the nebular theory holds that the solar system was formed from the gravitational collapse of a gaseous cloud called the solar nebula. It had a diameter of 100 AU and was 2-3 times the mass of the Sun. Over time a disturbance (possibly a nearby supernova) squeezed the nebula, pushing matter inward until gravitational forces overcame the internal gas pressure and it began to collapse. As the nebula collapsed it began to spin faster to conserve angular momentum, and became warmer. 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 gradually contracting protostar at the center.
Grains of dust (silicates and metals) and ice (hydrogen compounds) condensed from the gas, and began to accrete into larger and larger clumps, forming planetesimals. Inside the frost line, planetesimals were composed of rock and metal, because those are the only grains that can condense at those temperatures, and remained relatively small because they were only 0.6% the mass of the disk. The larger icy planetesimals beyond the frost line became massive enough to capture and hold onto helium and then hydrogen gases, which caused them to rapidly grow into jovian protoplanets.
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, which increased until hydrostatic equilibrium was achieved. The young Sun's solar wind then cleared away all the gas and dust in the protoplanetary disk, blowing it into interstellar space, thus ending the growth of the planets.
Our solar system began within an immense cloud of interstellar gas and dust. Within this cloud were regions with higher density, and it's there that material began accumulating. Over millions of years, these blobs grew larger and larger as gravity pulled in more material to them. One of these became large enough and dense enough that its internal temperature set off nuclear fusion. This is our sun. The remaining balls of gas and dust became the planets of our solar system.
From the Big Bang, all the particles and gases in space gain kinetic energy.
A large ball of burning gas possesses a gravitational force due to its huge mass.
As the millions of particles pass by, some of them do so at the RIGHT velocity to be "caught" by this burning gas' gravity.
As this velocity is too low for the particles to "escape" from the gravity of the gas and too high for them to collapse into the burning gas, the 9 (or 10 or 11) planets become planets of our Solar System.
no no se
wikipedia, try it
Apparently, the entire universe was all together, but what scientists call,"The Big Bang", possibly from solar activity, spread out all the planets.
Look at this website:
http://cougar.jpl.nasa.gov/hr4796/anim.h...
The words may be confusing but the pictures are really good.
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