Why is the sun in the center as it is today? Michael Yura, an astrophysicist from the University of California, explains briefly
How was the solar system formed? Michael A. Yura, an astrophysicist at the University of California, Los Angeles, explains: "The best model of the history of our solar system claims that the planets formed from a swirling disk of dust that surrounded the sun, leaving behind a collection of bodies with the sun at their center.
According to this model, the solar system was formed as a result of the collapse and flattening of an interstellar cloud. The diameter of the cloud may have been one light year - ten million times the diameter of the sun. As the cloud compressed and cooled, its own gravity overcame the other forces acting to stabilize the system and caused it to contract considerably.
Before this collapse, it must be assumed that the original cloud had a constant mass and a slight, random rotation around some central axis. Most of the mass of the cloud was used to form the sun, but some of it became flattened and became a disk that surrounded the young star. Observations of other disks in our galaxy show that this disk probably gave birth to the Earth and the other planets, and caused them to remain, by nature, in their orbit around the Sun."
From the July-August issue of Scientific American Israel
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Dear Doni, I didn't understand where the soybeans from the sun came from, please explain to me?
In my opinion, all the answers are incorrect,,, the sun was created from huge rocks that when they collided they sent off a spark that burned each of them... the other rocks also connected and created a chemical reaction that produced huge stars. A sphere in Israel was created from the big bang that exploded due to the changes in the atmosphere after the creation of the Sun, Venus, Pluto, and Jupiter... It is important to note that a month ago a spaceship without people landed on the planet Saturn. When it reached seven, the electricity ran out, so it did not take any pictures, but me and my NASA colleagues investigated and found out that there was a people. The spacecraft (planet) at right angles to the sun will be able to wake up with solar electricity and photograph the comet and what is happening there...!
Hmmmm
Sorry if I got the number of memes wrong but it's better than getting everything else wrong.
What is the "logic" that tells you that the sun and the planets were formed from different systems?
Does the same logic make a similar claim for other solar systems?
Does it explain why all the planets rotate in the same direction?
Does he explain to you why such systems are created (without the involvement of another system) even in computer simulations in which everything that is operated is only logic?
How did dust create nine planets and how was the heat for the sun created and why?
Neptune and Uranus are both blue why?????????
Roy:
I entered here only because of truth's strange response (which I noticed sums up Ilan's words very well) and I read your response at the same time.
I wanted to point out that for a finite cloud of gas to start collapsing there is no need for any assumption of non-uniform dispersion.
All the particles are attracted, in the end, towards the center of gravity of the cloud and a center of gravity is also uniform for a cloud (again - if it is finite - which in relation to the entire universe obviously constitutes non-uniformity).
Again according to the "Theory of Intelligence" the steps:
1. Critical collision within a huge vortex
2. Dispersion of particles as a result of a collision in the form of a vortex
3. Increasing gravity as a result of the process
4. The suction of the particles that have not moved too far, back and swirling of dust and gases around the gravitational force of larger particles
5. Each body will find its place between the gravitational force of the large body and its centrifugal force around that body.
6. In the same way moons and gases were formed in different places, and some bodies were attracted to bodies stronger than them that were formed behind them and thus caused them to rotate opposite to the rest.
Apparently, if in millions of years there is no massive collision in our system, the system will fade when the Sun loses gravity, it will grow into a gas giant, lose its power and contract, and everything will be cold and dark...
But suddenly... I won't tell you
According to the "Theory of Intelligence"
The pedestal was "dust" and was created as a result of an explosion caused by the collision of two or more massive bodies.
And it may happen again, also in our system.
Mr. Peretz -
As Yehuda Sabdarmish mentioned in his response to another article, dark matter at this point is a theory and nothing more. There are other theories that explain the creation of the stars in an equally good way. Dark matter is just… more communicative. It is very easy to market it on TV, and to explain its existence in a simple and understandable way (because no one really knows what it is made of and what exactly its properties are, anyway).
Regarding your question - "What causes a cloud of dust to start a process that turns it into a star?"
As far as I know, one of the more plausible theories today is simply that the dust cloud does not have a constant density everywhere. There are larger grains of dust in it, and smaller ones. Due to the force of gravity, the large grains attract small grains of dust to them, and thus in a relatively slow process large clumps of material are formed. These large clumps can exert an even greater gravitational force, thereby attracting more matter to them at a greater speed. Eventually, a body the size of a star or planet is formed.
It sounds too simplistic...but the main question is what causes a cloud of dust to start a process that will turn it into a star?
It surprises me that they still haven't gotten used to regularly mentioning dark matter even though they have known about its existence since 1930. I was surprised by the existence of dark matter when I learned about its presence in space about a year and a half ago because it is not mentioned regularly. From the (space exploration) program today on television it turns out that dark matter is " The one who holds the stars and the galaxies lest they scatter and crumble to dust! Therefore, according to my idea of the beginning of creation, the dark matter is the one that ignited everything, in fact it is the "creator" of the universe, and if it is the one that holds the star, perhaps it is better to give it the credit that it is also the one that "decides" that a certain cloud will become a star and everything else?
In other words, if the dark matter doesn't "please" it, it will be able to dismantle everything by "moving" a little from us and the sun will simply disintegrate before our eyes or what is left of them!!
The scientists (according to them) still don't know how the dark matter holds the whole business and it will probably be the field of research in astronomy for the next hundred years..but without it we don't exist!
That's it.. it was a late night story .. brrrr!
How did that dust cloud create a plasma star in the form of a sun and stars of earth-type material when the distances between them are so small, logic says that the sun and the planets came from two completely different systems, met by chance and have not separated since then