After a star forms, a leftover ring of dust and gas eventually forms into planets. https://media.wired.com/photos/5a99a9c752430e4b5eb948c5/master/pass/SPoW_Feb26_2018_06.jpg
After a star forms, a leftover ring of dust and gas eventually forms into planets. https://media.wired.com/photos/5a99a9c752430e4b5eb948c5/master/pass/SPoW_Feb26_2018_06.jpg