It was formed approximately 4.6 billion years ago from the gravitational collapse of a region within a large molecular cloud most commonly found in the Milky Way galaxy. Over millions of years, the collapsing material formed a spinning disk, with the Sun coalescing at its center, growing hot and dense enough to initiate nuclear fusion. Hosted on Acast. See acast.com/privacy for more information.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.