How was the Milky Way galaxy formed?

Answer 1

The "Big Bang" created the Universe and the first stars. Not long after, these stars began to contract due to gravitational attraction, possibly from the remnants of the first population III stars.

These stars, created the early Milky Way. Since then, new stars have been formed - including our own Sun.

Answer 2

The Milky Way galaxy formed about 13.6 billion years ago from the gravitational collapse of a region within a large, rotating cloud of gas and dust. As the cloud collapsed, it formed a rotating disk that eventually gave rise to stars and planets, including our solar system. Over time, the Milky Way has grown through mergers with smaller galaxies and ongoing star formation within its spiral arms.