Why do the planets in the solar system move on the same surface?

- The answer to this question is found in the beginning of the solar system 4-5 billion years ago

Have you ever wondered why all the planets in the solar system revolve around the same surface with their moons? Even asteroids orbit on the same surface. We find the answer to this question from the beginning of the solar system 6-7 billion years ago.

At that time the solar system was a huge and revolving cloud made up of particles and gases. Says Nader Hedhidhipur, an astronomer at the University of Hawaii in Menoa. The massive cloud was as large as 12,000 astronomical units (AU). (One AU is the average distance between the Sun and the Earth, which is about 25 million miles. That is, 120 million km.) It began to collapse just above its center, and began to shrink under its own weight. It shrunk, shrunk, flattened and became thinner. As the dough for the pizza got thinner, it got thinner and became like a flat disc. This activity continued in our solar system.

Meanwhile, the particles and gases in the cloud began to heat up as it continued to shrink, and as a result of the tremendous heat and pressure, the atoms of hydrogen and helium began to fuse with each other. This fusion resulted in the origin of the sun. However, even that fusion may have lasted for millions of years before that.

Its maturation is our sun. Now the sun is evolving as it pulls in the gases and particles flowing in space. The process lasted for 50 million years, and the waves of heat and radiation left it. Thus the sun began to fill the empty space around it.

As the sun rose, the cloud flattened and became like a saucer with the sun at its center. According to Prof. Hedhidhipore states. He further says that this flat ship became a proto-planetary-disk. The young star (the sun) kept revolving. It spread to hundreds of AU, but its thickness was even less than one-tenth of the spread. That is what the astronomer says.

After this, for millions and millions of years, those particles (revolving around the sun) continued to combine. As a result, planets were eventually created. Before that, those particles formed small pellets as small as Lakhota, which formed planets found in each other. Although the sizes of these planets are different, but all the planets from Mercury to Yama are revolving on the same plane (surface) as they are formed from the same surface, says Professor Nader Heghidhipaur. That is why they have named the disk Proto-Planetary-Disk.