In a video that’ll make you want to open up an astrophysics book, Derek Muller discusses the incredible formation of the universe:
How does something come from nothing? That’s the best answer we have given the evidence. Everything before the Big Bang is speculation.
Not that Christian apologists care. If they don’t accept the natural scientific explanation, either they think God poofed the universe into existence a few thousand years ago, or God created the conditions just right for everything to unfold as it did. Both reasons defy proof.
Side note: If you’re actually looking to pick up a book about the formation of the universe, Simon Singh‘s Big Bang is incredible.