Twentieth-century science completely overturned our view of cosmology. We now know that our solar system is one of many in our galaxy, and our galaxy is one of many in the universe. These galaxies are spread throughout space in a nearly uniform distribution, and distant galaxies are mutually moving apart from each other as the universe expands. Over ten billion years ago the entire collection emerged from an incredibly hot and dense state: the Big Bang.
This, of course, is of interest only to those dangerous radicals who believe that reality matters. Or that matter has reality.