SOLAR SYSTEM

Detailed explanation-1: -The initial rotation or tumbling motion was accelerated as the nebula contracted, like a spinning skater who pulls in his arms to spin faster. The contracting, rotating cloud flattened into a disc. Within the disc, the largest concentration of matter was in the center. This became the sun.

Detailed explanation-2: -As the nebula collapsed under its own gravity, it spun faster and flattened into a disk. Most of the nebula’s material was pulled toward the center to form our Sun, which accounts for 99.8% of our solar system’s mass. Much of the remaining material formed the planets and other objects that now orbit the Sun.

Detailed explanation-3: -Our Sun may also make a planetary nebula when it runs out of nuclear fuel in about 5 billion years. The beauty of planetary nebulas is short-lived: they only linger a few thousand or tens of thousands of years before dispersing into interstellar space.

Detailed explanation-4: -The core accretion model Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula.

Detailed explanation-5: -The excess dust and gas is gradually removed from the solar nebula, which leaves planets around the sun and thus creates a new solar system.