SOLAR SYSTEM

Detailed explanation-1: -Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump together. Small particles drew together, bound by the force of gravity, into larger particles, according to the core accretion model.

Detailed explanation-2: -The nebular theory holds that our Solar System formed out of a nebula which collapsed under its own gravity. – We observe stars in the process of forming today. – The are always found within interstellar clouds of gas.

Detailed explanation-3: -The force of gravity compresses atoms in interstellar gas until the fusion reactions begin. How is a star born? the solar system was formed during the gravitational collapse of a nebula (a cloud of dust and gas) about 5 billion years ago.

Detailed explanation-4: -According to the nebular theory, stars form in massive and dense clouds of molecular hydrogen-giant molecular clouds (GMC). These clouds are gravitationally unstable, and matter coalesces within them to smaller denser clumps, which then rotate, collapse, and form stars.