EVERYDAY SCIENCE

Detailed explanation-1: -The Sun is the only star in our solar system. It is the center of our solar system, and its gravity holds the solar system together. Everything in our solar system revolves around it – the planets, asteroids, comets, and tiny bits of space debris.

Detailed explanation-2: -The core of the Sun is home to billions and billions of atoms of hydrogen, the lightest element in the universe. The immense pressure and heat pushes these atoms so close to one another that they squish together to create new, heavier atoms. This is called nuclear fusion.

Detailed explanation-3: -The core of the Sun is considered to extend from the center to about 0.2 to 0.25 of solar radius (140, 000–170, 000 kilometres (87, 000–106, 000 mi)). It is the hottest part of the Sun and of the Solar System.

Detailed explanation-4: -Nicolaus Copernicus (1473–1543) was a mathematician and astronomer who proposed that the sun was stationary in the center of the universe and the earth revolved around it.

Detailed explanation-5: -Distance Information The Milky Way is about 1, 000, 000, 000, 000, 000, 000 km (about 100, 000 light years or about 30 kpc) across. The Sun does not lie near the center of our Galaxy. It lies about 8 kpc from the center on what is known as the Orion Arm of the Milky Way.