SOLAR SYSTEM

Detailed explanation-1: -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. With the rise of the sun, the remaining material began to clump together.

Detailed explanation-2: -When a star like our Sun dies, it doesn’t explode into a supernova or collapse into a black hole. Instead, it gently sheds its outer layers, which form a beautiful cloud called a “planetary nebula”, while the dying star’s core becomes a white dwarf.

Detailed explanation-3: -The Sun was born about 4.6 billion years ago from the gravitational collapse of a vast cloud of gas and dust. Material in the center of the cloud was squeezed so tightly that it became hot enough to ignite nuclear fusion. Today, the Sun continues to fuse hydrogen atoms to make helium in its core.

Detailed explanation-4: -With the development of the heliocentric model by Nicolaus Copernicus in the 16th century, the Sun was believed to be the center of the Universe, with the planets (including Earth) and stars orbiting it.

Detailed explanation-5: -It began to collapse in on itself after becoming gravitationally unstable. This was possibly because of a nearby supernova-an exploding star-sending shock waves rippling through space. Gravity then caused dust and gas to be continually tugged to the centre of the cloud, making its core very hot and dense.