GENERAL KNOWLEDGE

Detailed explanation-1: -Our solar system began to form around 5 billion years ago, roughly 8.7 billion years after the Big Bang. A solar system consists of a collection of objects orbiting one or more central stars.

Detailed explanation-2: -A little bit later, 9.2 billion years after the Big Bang, dark energy becomes the dominant component of energy in the Universe. At this point, we enter the final era.

Detailed explanation-3: -Our solar system is estimated to have been born a little after 9 billion years after the Big Bang, making it about 4.6 billion years old. According to current estimates, the sun is one of more than 100 billion stars in our Milky Way galaxy alone, and orbits roughly 25, 000 light-years from the galactic core.

Detailed explanation-4: -1 billion years after the Big Bang After about a billion years, the densest regions of the Universe had become truly massive. Collections of thousands and millions of stars grouped together to form the first galaxies, and then these galaxies collided and merged to form larger galaxies.