Our solar system formed about 4.5 billion years ago from a large cloud of dust and gas called a nebula. This nebula was made up of mostly hydrogen and helium, with small amounts of other elements. The nebula was not evenly distributed, but had some areas that were denser than others. These denser areas began to collapse under their own gravity, forming small clumps of matter. These clumps continued to grow as they attracted more and more material from the surrounding nebula.
As the clumps grew, they began to spin. This spinning was caused by the conservation of angular momentum. Angular momentum is a measure of how much an object is rotating. As the clumps grew, they became more spherical, and their rotation speed increased. This is because the same amount of angular momentum was now being spread out over a larger volume.
The spinning clumps of matter eventually became so large that they began to collapse under their own gravity. This collapse caused the temperature and pressure at the center of the clumps to increase. Eventually, the temperature and pressure at the center of the clumps became so high that nuclear fusion began. Nuclear fusion is a process in which hydrogen atoms are fused together to form helium atoms. This process releases a tremendous amount of energy, which caused the clumps to become even hotter and brighter.
The clumps that became hot enough to undergo nuclear fusion are called stars. Our Sun is one of these stars. The other clumps of matter that did not become hot enough to undergo nuclear fusion are called planets.
The planets in our solar system formed from the disk of dust and gas that surrounded the Sun. This disk was not evenly distributed, but had some areas that were denser than others. The planets formed in these denser areas.
The planets formed through a process called accretion. Accretion is the process in which small particles of matter collide with each other and stick together. The small particles of matter that collided to form the planets were mostly dust and ice.
The planets continued to grow as they accreted more and more matter from the surrounding disk. The planets that were closer to the Sun were made mostly of rock and metal, while the planets that were farther from the Sun were made mostly of ice and gas.
The planets in our solar system continue to move around the Sun. The planets move in elliptical orbits, which means that their orbits are not perfect circles. The planets also move at different speeds. The planets that are closer to the Sun move faster than the planets that are farther from the Sun.
The planets in our solar system have been moving around the Sun for billions of years. They will continue to move around the Sun for billions of years to come.

In addition to the planets, our solar system also contains a number of other objects, including asteroids, comets, and meteoroids. Asteroids are small, rocky objects that orbit the Sun. Comets are icy objects that orbit the Sun. Meteoroids are small pieces of rock or metal that orbit the Sun.
The asteroids, comets, and meteoroids in our solar system are leftovers from the formation of the solar system. They have been moving around the Sun for billions of years.
The planets, asteroids, comets, and meteoroids in our solar system are all part of a vast and complex system. This system has been evolving for billions of years, and it will continue to evolve for billions of years to come.
(This is an attempt to answer Jaz’ question about how was ‘all this made’, good question😊)
©️ Rocky Mountain Dispatch 2023


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